APA (7th ed.) Citation

Unger, F. (1839). Fossile Insecten.

Chicago Style (17th ed.) Citation

Unger, Franz. Fossile Insecten. Norimbergae, 1839.

MLA (9th ed.) Citation

Unger, Franz. Fossile Insecten. 1839.

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