Baskin, Jerry M.; Baskin, Carol C. (1993). "The Ecological Life Cycle of Perideridia americana (Apiaciae)". American Midland Naturalist. 129 (1): 75–86. doi:10.2307/2426437. JSTOR2426437.
jstor.org
Baskin, Jerry M.; Baskin, Carol C. (1993). "The Ecological Life Cycle of Perideridia americana (Apiaciae)". American Midland Naturalist. 129 (1): 75–86. doi:10.2307/2426437. JSTOR2426437.