APA (7th ed.) Citation

Irwin, H. S., & Barneby, R. C. The American cassiinae: A synoptical revision of Leguminosae tribe Cassieae subtribe Cassiinae in the New World. New York Botanical Garden.

Chicago Style (17th ed.) Citation

Irwin, Howard S., and Rupert C. Barneby. The American Cassiinae: A Synoptical Revision of Leguminosae Tribe Cassieae Subtribe Cassiinae in the New World. Bronx, NY: New York Botanical Garden.

MLA (9th ed.) Citation

Irwin, Howard S., and Rupert C. Barneby. The American Cassiinae: A Synoptical Revision of Leguminosae Tribe Cassieae Subtribe Cassiinae in the New World. New York Botanical Garden.