Shapiro, A. M. (1975). The role of watercress, Nasturtium officinale as a host of native and introduced pierid butterflies in California. Zenodo.
Chicago Style (17th ed.) CitationShapiro, Arthur M. The Role of Watercress, Nasturtium Officinale as a Host of Native and Introduced Pierid Butterflies in California. Zenodo, 1975.
MLA (9th ed.) CitationShapiro, Arthur M. The Role of Watercress, Nasturtium Officinale as a Host of Native and Introduced Pierid Butterflies in California. Zenodo, 1975.
Warning: These citations may not always be 100% accurate.