APA (7th ed.) Citation

Fassett, N. C., & Sauer, J. Studies of variation in the weed genus Phytolacca.

Chicago Style (17th ed.) Citation

Fassett, Norman C., and Jonathan Sauer. Studies of Variation in the Weed Genus Phytolacca.

MLA (9th ed.) Citation

Fassett, Norman C., and Jonathan Sauer. Studies of Variation in the Weed Genus Phytolacca.

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