APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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