APA

Leeson R. C., . (1989). Human structure. E.U.A: Bc Decker.

Chicago

Leeson Roland C, . 1989. Human structure. E.U.A: Bc Decker.

Harvard

Leeson R. C., . (1989). Human structure. E.U.A: Bc Decker.

MLA

Leeson Roland C, . Human structure. E.U.A: Bc Decker. 1989.