APA (7th ed.) Citation

Hoppe, G. (2016). Bernhard Grzimek - Heinz Sielmann.

Chicago Style (17th ed.) Citation

Hoppe, Gregor. Bernhard Grzimek - Heinz Sielmann. 2016.

MLA (9th ed.) Citation

Hoppe, Gregor. Bernhard Grzimek - Heinz Sielmann. 2016.

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