APA (7th ed.) Citation

Cobb, B. (1984). A field guide to the ferns and their related families of Northeastern and Central North America with a section on species also found in the British Isles and Western Europe. Houghton Mifflin Company.

Chicago Style (17th ed.) Citation

Cobb, Boughton. A Field Guide to the Ferns and Their Related Families of Northeastern and Central North America with a Section on Species Also Found in the British Isles and Western Europe. Boston: Houghton Mifflin Company, 1984.

MLA (9th ed.) Citation

Cobb, Boughton. A Field Guide to the Ferns and Their Related Families of Northeastern and Central North America with a Section on Species Also Found in the British Isles and Western Europe. Houghton Mifflin Company, 1984.