Robinson, H. E. (1999). Generic and subtribal classification of american vernoieae. Washington: Smitsonian Institution Press.
Chicago Style CitationRobinson, Harold Ernest. Generic and Subtribal Classification of American Vernoieae. Washington: Smitsonian Institution Press, 1999.
MLA CitationRobinson, Harold Ernest. Generic and Subtribal Classification of American Vernoieae. Washington: Smitsonian Institution Press, 1999.
Warning: These citations may not always be 100% accurate.