Authors: Richel, Albertus Johannes --- Hilsum-Beuckens, Christine --- Grzimek, Bernhard --- Kraus, Otto --- Riedl, Rupert --- et al. Akkermans-Cramer, C.I. --- Pihlajamaa-Glimmerveen, L.E. --- Van Vliet, Th. M. --- Zwinenberg, A.J. --- Butot, L.J.M. --- Fiedler, Walter --- Gewalt, Wolfgang --- Heinemann, Dietrich --- Werger, M.J.A. --- Hidden, W. --- Scheygrond, A.J. --- Van Wijngaarden, A. --- Altevogt, Rudolf --- Angermann, Renate --- Dathe, Heinrich --- Abels, G.Ch.E. --- Pollmann-Vroom, Tine --- Scheygrond, A.
Year: 1973 Publisher: Utrecht Antwerpen Het Spectrum