APA

Wilcove D. S., McMillan M. & Winston K. C.What exactly is an endangered species? an analysis of the U.S. endangered species list: 1985-1991. : .

Chicago

Wilcove David S, McMillan Margaret and Winston Keith C.What exactly is an endangered species? an analysis of the U.S. endangered species list: 1985-1991. : .

Harvard

Wilcove D. S., McMillan M. and Winston K. C.What exactly is an endangered species? an analysis of the U.S. endangered species list: 1985-1991. : .

MLA

Wilcove David S, McMillan Margaret and Winston Keith C.: . .