APA (7th ed.) Citation

Faegri, K., & Pijl, L. v. d. (1979). The principles of pollination ecology (3d rev. ed.). Pergamon Press.

Chicago Style (17th ed.) Citation

Faegri, Knut, and L. van der Pijl. The Principles of Pollination Ecology. 3d rev. ed. Oxford ; New York: Pergamon Press, 1979.

MLA (9th ed.) Citation

Faegri, Knut, and L. van der Pijl. The Principles of Pollination Ecology. 3d rev. ed. Pergamon Press, 1979.