Gill, D. E. (1998). The flowering plants of Palo Verde National Park, Guanacaste province, Costa Rica: Keys and annotated lists.
Chicago Style CitationGill, Douglas E. The Flowering Plants of Palo Verde National Park, Guanacaste Province, Costa Rica: Keys and Annotated Lists. 1998.
MLA CitationGill, Douglas E. The Flowering Plants of Palo Verde National Park, Guanacaste Province, Costa Rica: Keys and Annotated Lists. 1998.
Warning: These citations may not always be 100% accurate.