Authors: Bauer, A. --- Kunz, J. I. --- Bieri, F. --- Burri, R. W. --- Dick, A. --- et al. Hadorn, C. --- Keller, H --- Kobel, F. --- Näf, A. --- Quadri, C. --- Rapin, Jean --- Schmid, H. --- Schnyder, A. --- Siegrist, J. --- Spreng, H. --- Thomann, H. --- Wiesmann, R. --- Woessner, D. --- Wuilloud, H.
Year: 1945 Publisher: Olten : Otto Walter,