APA (7th ed.) Citation

Pringle, L., & Wellmann, H. (1990). Flüsse und Seen (4th german print.). Time-Life-Bücher.

Chicago Style (17th ed.) Citation

Pringle, Laurence, and Hans-Heinrich Wellmann. Flüsse Und Seen. 4th german print. Amsterdam: Time-Life-Bücher, 1990.

MLA (9th ed.) Citation

Pringle, Laurence, and Hans-Heinrich Wellmann. Flüsse Und Seen. 4th german print. Time-Life-Bücher, 1990.