APA (7th ed.) Citation

Zerlett, H. H., & Zerlett, H. H. M. (1939). Robert und Bertram. Tobis.

Chicago Style (17th ed.) Citation

Zerlett, Hans H., and Hans H. Mitarb Zerlett. Robert Und Bertram. Tobis, 1939.

MLA (8th ed.) Citation

Zerlett, Hans H., and Hans H. Mitarb Zerlett. Robert Und Bertram. Tobis, 1939.

Warning: These citations may not always be 100% accurate.