APA (7th ed.) Citation

Krukoff, B. A., & Monachino, J. (1942). The American species of Strychnos ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Krukoff, B. A., and J. Monachino. The American Species of Strychnos. [Sonderdr.]. 1942.

MLA (9th ed.) Citation

Krukoff, B. A., and J. Monachino. The American Species of Strychnos. [Sonderdr.]. 1942.

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