APA (7th ed.) Citation

Greeley, A., & Greeley, A. M. (1972). Einladung zur Freundschaft. Walter.

Chicago Style (17th ed.) Citation

Greeley, Andrew, and Andrew M. Greeley. Einladung Zur Freundschaft. Olten Freiburg i. Br. [u.a.]: Walter, 1972.

MLA (8th ed.) Citation

Greeley, Andrew, and Andrew M. Greeley. Einladung Zur Freundschaft. Walter, 1972.

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