APA (7th ed.) Citation

Willemstein, S. C. (1987). An evolutionary basis for pollination ecology. E.J. Brill.

Chicago Style (17th ed.) Citation

Willemstein, S. C. An Evolutionary Basis for Pollination Ecology. Leiden: E.J. Brill, 1987.

MLA (8th ed.) Citation

Willemstein, S. C. An Evolutionary Basis for Pollination Ecology. E.J. Brill, 1987.