APA (7th ed.) Citation

Ohaus, F., & Schenkling, S. (1918). Coleopterorum catalogus. Junk.

Chicago Style (17th ed.) Citation

Ohaus, F., and Sigmund Schenkling. Coleopterorum Catalogus. Berlin: Junk, 1918.

MLA (9th ed.) Citation

Ohaus, F., and Sigmund Schenkling. Coleopterorum Catalogus. Junk, 1918.

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