Langman, I. K. 1. (1964). A selected guide to the literature on the flowering plants of Mexico. Philadelphia: University of Pennsylvania Press.
Chicago Style CitationLangman, Ida Kaplan 1904-1991. A Selected Guide to the Literature On the Flowering Plants of Mexico. Philadelphia: University of Pennsylvania Press, 1964.
MLA CitationLangman, Ida Kaplan 1904-1991. A Selected Guide to the Literature On the Flowering Plants of Mexico. Philadelphia: University of Pennsylvania Press, 1964.
Warning: These citations may not always be 100% accurate.