APA (7th ed.) Citation

Schmitt, E. (1990). Verschmittzter Tierpark (o.A.).

Chicago Style (17th ed.) Citation

Schmitt, Erich. Verschmittzter Tierpark. o.A. Berlin, 1990.

MLA (8th ed.) Citation

Schmitt, Erich. Verschmittzter Tierpark. o.A. 1990.

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