Cita APA (7a ed.)

CUNNINGHAM WILLIAM;COOPER TERENCE; GORHAM EVILLE; HEPWORTH MALCOM. (2006). ENVIRONMENTAL ENCYCLOPEDIA (2ND.). JAICO PUBLISHING HOUSE.

Cita Chicago Style (17a ed.)

CUNNINGHAM WILLIAM;COOPER TERENCE; GORHAM EVILLE; HEPWORTH MALCOM. ENVIRONMENTAL ENCYCLOPEDIA. 2ND. JAICO PUBLISHING HOUSE, 2006.

Cita MLA (9a ed.)

CUNNINGHAM WILLIAM;COOPER TERENCE; GORHAM EVILLE; HEPWORTH MALCOM. ENVIRONMENTAL ENCYCLOPEDIA. 2ND. JAICO PUBLISHING HOUSE, 2006.

Precaución: Estas citas no son 100% exactas.