Croy, O. (1950). Hunderterlei Fotokniffe. Wilhelm Knapp.
Chicago Style (17th ed.) CitationCroy, Otto. Hunderterlei Fotokniffe. Halle (Saale): Wilhelm Knapp, 1950.
MLA (8th ed.) CitationCroy, Otto. Hunderterlei Fotokniffe. Wilhelm Knapp, 1950.
Warning: These citations may not always be 100% accurate.