APA (7th ed.) Citation

Dircksen, R. (1963). Wirbellose Tiere.

Chicago Style (17th ed.) Citation

Dircksen, Rolf. Wirbellose Tiere. 1963.

MLA (9th ed.) Citation

Dircksen, Rolf. Wirbellose Tiere. 1963.

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