APA (7th ed.) Citation

Beaman, J. H. (1990). Revision of Hieracium (Asteraceae) in Mexico and Central America. American Soc. of Plant Taxonomists.

Chicago Style (17th ed.) Citation

Beaman, John H. Revision of Hieracium (Asteraceae) in Mexico and Central America. Ann Arbor, Mich: American Soc. of Plant Taxonomists, 1990.

MLA (9th ed.) Citation

Beaman, John H. Revision of Hieracium (Asteraceae) in Mexico and Central America. American Soc. of Plant Taxonomists, 1990.