Cita APA (7th ed.)

Carr, N., & Whitton, B. (1973). The biology of blue-green algae. Blackwell.

Cita Chicago (17th ed.)

Carr, N.G, i B.A Whitton. The Biology of Blue-green Algae. Oxford, England: Blackwell, 1973.

Cita MLA (9th ed.)

Carr, N.G, i B.A Whitton. The Biology of Blue-green Algae. Blackwell, 1973.