Authors: Földi, Andreas --- Baumann, Ernst --- Geiger, Paul --- Schmidt, Wilhelm --- Geering, Arnold --- et al. Fuchs, Harald --- Jaber, Karel --- Junod, Louis --- Rassem, Mohammed --- Rubi, Christian --- Theiler, Willy --- Mühll, Peter --- Wackernagel, Hans Georg --- Wyss, Bernhard --- Zinsli, Paul --- Meuli, Karl
Year: 1951 Publisher: Basel : G. Krebs,