(1992). Herbaceous perennials (1. publ.). Cassell.
Chicago Style (17th ed.) CitationHerbaceous Perennials. 1. publ. London: Cassell, 1992.
MLA (9th ed.) CitationHerbaceous Perennials. 1. publ. Cassell, 1992.
Warning: These citations may not always be 100% accurate.