APA

International Congress of Systematic and Evolutionary Biology, Dudley E. C., Smithsonian Institution & University of Maryland at College Park. (1991). The unity of evolutionary biology (Volume - II). Portland, Or: Dioscorides Press.

Chicago

International Congress of Systematic and Evolutionary Biology, Dudley Elizabeth Corning, Smithsonian Institution and University of Maryland at College Park. 1991. The unity of evolutionary biology (Volume - II). Portland, Or: Dioscorides Press.

Harvard

International Congress of Systematic and Evolutionary Biology, Dudley E. C., Smithsonian Institution and University of Maryland at College Park. (1991). The unity of evolutionary biology (Volume - II). Portland, Or: Dioscorides Press.

MLA

International Congress of Systematic and Evolutionary Biology, Dudley Elizabeth Corning, Smithsonian Institution and University of Maryland at College Park. The unity of evolutionary biology (Volume - II). Portland, Or: Dioscorides Press. 1991.