APA

Milton K., Van Soest P. J. & Robertson J. B.Digestive efficiencies of wild howler monkeys. : .

Chicago

Milton Katharine, Van Soest P J and Robertson J B.Digestive efficiencies of wild howler monkeys. : .

Harvard

Milton K., Van Soest P. J. and Robertson J. B.Digestive efficiencies of wild howler monkeys. : .

MLA

Milton Katharine, Van Soest P J and Robertson J B.: . .