| Rijk, J.H. de | € 45,00 |
| Ripley, S. Dillon | € 25,00 |
| Ripley, S.D. | € 15,00 |
| Robbins, Chandler S. - e.a. | € 5,00 |
| Robbins, G.E.S. | € 10,00 |
| Roberts, Austin | € 10,00 |
| Roberts, Sonia | € 9,00 |
| Robertson, C.J.R. | € 5,00 |
| Robin, Libby | € 30,00 |
| Roodbergen, Sake P. | € 5,00 |
| Rowland, Peter | € 8,00 |
| Rowlands, Beau W. - a.o. | € 45,00 |
| Ruitenbeek, Wim & Kees J.G. Scharringa & Piet J. Zomerdijk | € 8,00 |
| Sauer, F. | € 5,00 |
| Scheufler, Horst & Arnd Stiefel | € 8,00 |
| Schmidt, Egon | € 8,00 |
| Schoonhoven, Daan | € 10,00 |
| Schoonhoven, Daan | € 10,00 |
| Schoonhoven, Daan | € 10,00 |
| Schoonhoven, Daan | € 10,00 |
| Schoonhoven, Daan | € 10,00 |
| Schoonhoven, Daan | € 10,00 |
| Schoonhoven, Daan | € 10,00 |
| Schurmann, Ted | € 6,00 |
| Schutte, Hesper &Tom den Boer | € 10,00 |
| Scott, Bob | € 6,00 |
| Scott, Peter | € 5,00 |
| Scott, Peter (editor) | € 10,00 |
| Sepp, Christiaan & Cornelius Nozeman & Dr. A. Schierbeek (inleiding) | € 10,00 |
| Sepp, Christiaan & Cornelius Nozeman & Dr. A. Schierbeek (inleiding) | € 10,00 |
| Sewell, Matt | € 6,00 |
| Shelton, Napier & Dr. Elchin H. Sultanov (with the assistance of) | € 80,00 |
| Shirihai, Hadoram | € 200,00 |
| Short, Lester & Jennifer Horne | € 150,00 |
| Siegfried, W.R. | € 5,00 |
| Sigrist, Tomas | € 100,00 |
| Sinclair, Ian | € 12,50 |
| Sinclair, Valerie | € 10,00 |
| Singer, Detlef | € 5,00 |
| Skutch, Alexander F. | € 15,00 |
| Smit, J.J. & Terlouw, R.J.S. | € 6,00 |
| Smythies, B.E. | € 25,00 |
| Smythies, B.E. | € 35,00 |
| Snouckaert van Schauburg, R.C.E.G.J. Baron & T. Csörgey (illustraties) | € 150,00 |
| Snow, David | € 45,00 |
| Sponholz, Hans | € 6,00 |
| Stacey, Peter B. & Walter D. Koenig | € 65,00 |
| Stastny, Karel | € 10,00 |
| Steltman, Piet - e.a. | € 5,00 |
| Sterry, Paul | € 8,00 |
| Stokes, Hazel | € 5,00 |
| Stolk, Ari | € 5,00 |
| Summers-Smith, J. Denis | € 100,00 |
| Sutton, George Miksch | € 15,00 |
| Taapken, Jaap | € 5,00 |
| Tanis, J.J.C. | € 5,00 |
| Tanis, J.J.C. | € 5,00 |
| Tarboton, Warwick | € 40,00 |
| Taylor, Moss | € 20,00 |
| Thijsse, dr. Jac. P. | € 5,00 |
| Thijsse, Jac.P. | € 9,00 |
| Thijsse, Jac.P. | € 12,50 |
| Thorburn, Archibald | € 20,00 |
| Tijssen-van 't Kruis, T. | € 5,00 |
| Tolman, Rinke | € 5,00 |
| Tory Peterson, Roger | € 12,50 |
| Trotman, Colin | € 30,00 |
| Tuck, Leslie M. | € 15,00 |
| Tudge, Colin | € 15,00 |
| Turner, William & A.H. Evans (editor) | € 30,00 |
| Tyler, Stephanie J. | € 6,00 |
| Valk, A. | € 5,00 |
| Varesvuo, Markus | € 10,00 |
| Various | € 5,00 |
| Verdet, Pierre | € 15,00 |
| Vergeer, Jan-Willem | € 5,00 |
| Vesey-Fitzgerald, Brian & Allen W. Seaby (colour illustrations by) | € 5,00 |
| Viner, Bradley | € 5,00 |
| Vlasakker, Joep van de | € 5,00 |
| Voous, K.H. | € 10,00 |
| Voous, K.H. - en anderen | € 8,00 |
| Voous, Karel Hendrik | € 10,00 |
| Vriends-Parent, Lucy | € 5,00 |
| Vries, J.A. De | € 5,00 |
| Ward, Mark | € 5,00 |
| Wells, D.R. | € 30,00 |
| Wetmore, A. | € 60,00 |
| Whistler, Hugh | € 15,00 |
| Whitfield, Philip | € 6,00 |
| Wildash, Philip | € 10,00 |
| Wilson, Barry W. (Introduction) | € 5,00 |
| Wilson, Peter & Bob Gibbons | € 8,00 |
| Winkler, Hans & David A. Christie & David Nurrney | € 45,00 |
| Winterbottom, J.M. & C.J. Uys | € 10,00 |
| Witherby, H.F. - a.o. | € 60,00 |
| Wolda, G. | € 5,00 |
| Yalden, D.W. & U. Albarella | € 35,00 |
| Zimmerman, Dale A. & Donald A. Turner & David J. Pearson | € 30,00 |