Cita APA (7a ed.)

Cameron, R., & Redfern, M. (1976). British land snails. Mollusca, Gastropoda: Keys and notes for the identification of the species. Academic Press.

Cita Chicago Style (17a ed.)

Cameron, R.A.D, y Margaret Redfern. British Land Snails. Mollusca, Gastropoda: Keys and Notes for the Identification of the Species. London [etc.]: Academic Press, 1976.

Cita MLA (9a ed.)

Cameron, R.A.D, y Margaret Redfern. British Land Snails. Mollusca, Gastropoda: Keys and Notes for the Identification of the Species. Academic Press, 1976.