APA (7th ed.) Citation

Franz, W. (1981). Beobachten, Denken, Sprechen.

Chicago Style (17th ed.) Citation

Franz, Walter. Beobachten, Denken, Sprechen. 1981.

MLA (9th ed.) Citation

Franz, Walter. Beobachten, Denken, Sprechen. 1981.

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