Davis, P. H. C. J. (1979). Identification of flowering plant families: Including a key to those native and cultivated in north temperate regions (2.). CUP.
Chicago Edition CitationDavis, P H Cullen J. Identification of Flowering Plant Families: Including a Key to Those Native and Cultivated in North Temperate Regions. 2. London: CUP, 1979.
MLA Edition CitationDavis, P H Cullen J. Identification of Flowering Plant Families: Including a Key to Those Native and Cultivated in North Temperate Regions. 2. CUP, 1979.
Warning: These citations may not always be 100% accurate.