APA (7th ed.) Citation

Watson, E. V. (1968). British mosses and liverworts: An introductory work, with full descriptions and figures of over 200 species, and keys for the identification of all except the very rare species (2nd ed.). Cambridge U.P..

Chicago Style (17th ed.) Citation

Watson, E. Vernon. British Mosses and Liverworts: An Introductory Work, with Full Descriptions and Figures of over 200 Species, and Keys for the Identification of All Except the Very Rare Species. 2nd ed. London: Cambridge U.P., 1968.

MLA (9th ed.) Citation

Watson, E. Vernon. British Mosses and Liverworts: An Introductory Work, with Full Descriptions and Figures of over 200 Species, and Keys for the Identification of All Except the Very Rare Species. 2nd ed. Cambridge U.P., 1968.