Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Carr, N. G., y B. A. Whitton. The Biology of Blue-green Algae. Oxford [etc.]: Blackwell Scientific, 1973.

Cita MLA (9a ed.)

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