APA (7th ed.) Citation

Grayum, M. H. (1996). Revision of Philodendron subgenus Pteromischum (Araceae) for Pacific and Caribbean tropical America. American Society of Plant Taxonomists.

Chicago Style (17th ed.) Citation

Grayum, Michael Howard. Revision of Philodendron Subgenus Pteromischum (Araceae) for Pacific and Caribbean Tropical America. Ann Arbor, Mich.: American Society of Plant Taxonomists, 1996.

MLA (9th ed.) Citation

Grayum, Michael Howard. Revision of Philodendron Subgenus Pteromischum (Araceae) for Pacific and Caribbean Tropical America. American Society of Plant Taxonomists, 1996.