Cita APA (7th ed.)

Sporne, K. R. (1975). The Morphology of Pteridophytes: The Structure of Ferns and Allied Plants (4th ed.). Hutchinson.

Cita Chicago (17th ed.)

Sporne, K. R. The Morphology of Pteridophytes: The Structure of Ferns and Allied Plants. 4th ed. London: Hutchinson, 1975.

Cita MLA (9th ed.)

Sporne, K. R. The Morphology of Pteridophytes: The Structure of Ferns and Allied Plants. 4th ed. Hutchinson, 1975.