APA (7th ed.) Citation

(1981). Zürich (3., verb. Ausg.). Dülk.

Chicago Style (17th ed.) Citation

Zürich. 3., verb. Ausg. Berlin: Dülk, 1981.

MLA (9th ed.) Citation

Zürich. 3., verb. Ausg. Dülk, 1981.

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