Citazione Stile APA (7a Edizione)

Sporne, K. R. (1966). The morphology of pteridophytes: The structure of ferns and allied plants ([2nd ed].). Hutchinson University Library.

Citazione stile Chigago Style (17a edizione)

Sporne, K. R. The Morphology of Pteridophytes: The Structure of Ferns and Allied Plants. [2nd ed]. London: Hutchinson University Library, 1966.

Citatione MLA (9a ed.)

Sporne, K. R. The Morphology of Pteridophytes: The Structure of Ferns and Allied Plants. [2nd ed]. Hutchinson University Library, 1966.