Cita APA (7a ed.)

Faegri, K. (1966). The principles of pollination ecology ([1st ed.].). Pergamon.

Cita Chicago Style (17a ed.)

Faegri, Knut. The Principles of Pollination Ecology. [1st ed.]. Toronto: Pergamon, 1966.

Cita MLA (9a ed.)

Faegri, Knut. The Principles of Pollination Ecology. [1st ed.]. Pergamon, 1966.