APA (7th ed.) Citation

Smith, G. M. (1955). Cryptogamic botany (2. ed.). McGraw-Hill Book Co.

Chicago Style (17th ed.) Citation

Smith, Gilbert Morgan. Cryptogamic Botany. 2. ed. New York [u.a.]: McGraw-Hill Book Co, 1955.

MLA (9th ed.) Citation

Smith, Gilbert Morgan. Cryptogamic Botany. 2. ed. McGraw-Hill Book Co, 1955.