APA

Leck M. A., Parker V. T. & Simpson R. L. (1989). Ecology of soil seed banks. New York: Academic.

Chicago

Leck Mary Allessio, Parker V Thomas and Simpson Robert L. 1989. Ecology of soil seed banks. New York: Academic.

Harvard

Leck M. A., Parker V. T. and Simpson R. L. (1989). Ecology of soil seed banks. New York: Academic.

MLA

Leck Mary Allessio, Parker V Thomas and Simpson Robert L. Ecology of soil seed banks. New York: Academic. 1989.