APA (7th ed.) Citation

Gleason, H. A., & Britton, N. L. (1968). The new Britton and Brown illustrated flora of the Northeastern United States and adjacent Canada. Published for the New York Botanical Garden by Hafner.

Chicago Style (17th ed.) Citation

Gleason, Henry A., and Nathaniel Lord Britton. The New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada. New York: Published for the New York Botanical Garden by Hafner, 1968.

MLA (9th ed.) Citation

Gleason, Henry A., and Nathaniel Lord Britton. The New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada. Published for the New York Botanical Garden by Hafner, 1968.