APA
Smith G. M., . (1955). Cryptogamic Botany : Bryophytes & Pteriodhytes - Vol. 2. : McGraw Hill Book Co.Internationa Students edn, New York.
Chicago
Smith Gilbert M, . 1955. Cryptogamic Botany : Bryophytes & Pteriodhytes - Vol. 2. : McGraw Hill Book Co.Internationa Students edn, New York.
Harvard
Smith G. M., . (1955). Cryptogamic Botany : Bryophytes & Pteriodhytes - Vol. 2. : McGraw Hill Book Co.Internationa Students edn, New York.
MLA
Smith Gilbert M, . Cryptogamic Botany : Bryophytes & Pteriodhytes - Vol. 2. : McGraw Hill Book Co.Internationa Students edn, New York. 1955.