APA

Sorensen J. T., Foottit R., . (1992). Ordination in the study of morphology, evolution and systematics of insects: applications and quantitative genetic rationals. New York: Elsevier.

Chicago

Sorensen J T, Foottit R, . 1992. Ordination in the study of morphology, evolution and systematics of insects: applications and quantitative genetic rationals. New York: Elsevier.

Harvard

Sorensen J. T., Foottit R., . (1992). Ordination in the study of morphology, evolution and systematics of insects: applications and quantitative genetic rationals. New York: Elsevier.

MLA

Sorensen J T, Foottit R, . Ordination in the study of morphology, evolution and systematics of insects: applications and quantitative genetic rationals. New York: Elsevier. 1992.