APA

(1992). Ecology & environment. Dordrecht [u.a.]: Kluwer.

Chicago

1992. Ecology & environment. Dordrecht [u.a.]: Kluwer.

Harvard

(1992). Ecology & environment. Dordrecht [u.a.]: Kluwer.

MLA

Ecology & environment. Dordrecht [u.a.]: Kluwer. 1992.