APA-viite

Sporne, K. R. (1976). Morphology of pteridophytes: The structure of ferns and allied plants (4th ed.). B I Pub..

Chicago-tyylinen lähdeviittaus

Sporne, K. R. Morphology of Pteridophytes: The Structure of Ferns and Allied Plants. 4th ed. Bombay: B I Pub., 1976.

MLA-viite

Sporne, K. R. Morphology of Pteridophytes: The Structure of Ferns and Allied Plants. 4th ed. B I Pub., 1976.