Cita APA (7th ed.)

Ehrhardt, J. P., & Seguin, G. (1978). Le plancton: Composition, écologie, pollution. Gauthier-Villars.

Cita Chicago (17th ed.)

Ehrhardt, Jean Paul, i Gérard Seguin. Le Plancton: Composition, écologie, Pollution. París: Gauthier-Villars, 1978.

Cita MLA (9th ed.)

Ehrhardt, Jean Paul, i Gérard Seguin. Le Plancton: Composition, écologie, Pollution. Gauthier-Villars, 1978.