APA (7th ed.) Citation

Gray, A., Robinson, B. L., & Fernald, M. L. (1908). Gray's new manual of botany: A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada (Seventh edition.). [publisher not identified].

Chicago Style (17th ed.) Citation

Gray, Asa, Benjamin Lincoln Robinson, and Merritt Lyndon Fernald. Gray's New Manual of Botany: A Handbook of the Flowering Plants and Ferns of the Central and Northeastern United States and Adjacent Canada. Seventh edition. New York : American Book Co.: [publisher not identified], 1908.

MLA (9th ed.) Citation

Gray, Asa, et al. Gray's New Manual of Botany: A Handbook of the Flowering Plants and Ferns of the Central and Northeastern United States and Adjacent Canada. Seventh edition. [publisher not identified], 1908.