APA (7th ed.) Citation

Hahn, G., & Hahn, R. Trilobitae carbonici et permici. Junk.

Chicago Style (17th ed.) Citation

Hahn, Gerhard, and Renate Hahn. Trilobitae Carbonici Et Permici. 's-Gravenhage: Junk.

MLA (9th ed.) Citation

Hahn, Gerhard, and Renate Hahn. Trilobitae Carbonici Et Permici. Junk.

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