APA (7th ed.) Citation

Grzimek, B. (1969). Vögel 2. Zürich : Kindler.

Chicago Style (17th ed.) Citation

Grzimek, Bernhard. Vögel 2. Zürich : Kindler, 1969.

MLA (9th ed.) Citation

Grzimek, Bernhard. Vögel 2. Zürich : Kindler, 1969.

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