APA (7th ed.) Citation

Fryxell, P. A. (1979). The natural history of the cotton tribe (Malvaceae, Tribe Gossypieae). Texas A&M University Press.

Chicago Style (17th ed.) Citation

Fryxell, Paul A. The Natural History of the Cotton Tribe (Malvaceae, Tribe Gossypieae). College Station: Texas A&M University Press, 1979.

MLA (9th ed.) Citation

Fryxell, Paul A. The Natural History of the Cotton Tribe (Malvaceae, Tribe Gossypieae). Texas A&M University Press, 1979.