APA (7th ed.) Citation

Frey, G. (1975). Naturkatastrophen (1. Aufl.). Klett.

Chicago Style (17th ed.) Citation

Frey, Gerhart. Naturkatastrophen. 1. Aufl. Stuttgart: Klett, 1975.

MLA (9th ed.) Citation

Frey, Gerhart. Naturkatastrophen. 1. Aufl. Klett, 1975.

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