APA (7th ed.) Citation

Martens, E. (1978). Was heißt Glück? Schroedel.

Chicago Style (17th ed.) Citation

Martens, Ekkehard. Was Heißt Glück? Hannover [u.a.]: Schroedel, 1978.

MLA (8th ed.) Citation

Martens, Ekkehard. Was Heißt Glück? Schroedel, 1978.

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