Withering, W., & MacGillivray, W. (1863). Withering's British plants: The flowering plants and ferns of Great Britain and Ireland, arranged according to the Linnaean system : with instructions to beginners, illustrative figures, a glossary, and outline of a natural classification (11th ed.). Edward Law.

Withering, William, and William MacGillivray. Withering's British Plants: The Flowering Plants and Ferns of Great Britain and Ireland, Arranged According to the Linnaean System : With Instructions to Beginners, Illustrative Figures, a Glossary, and Outline of a Natural Classification. 11th ed. Edward Law, 1863.