APA

Terborgh J. W., Winter B., .Method for siting parks and reserves with special reference to Colombia and Ecuador. : .

Chicago

Terborgh John W, Winter Blair, .Method for siting parks and reserves with special reference to Colombia and Ecuador. : .

Harvard

Terborgh J. W., Winter B., .Method for siting parks and reserves with special reference to Colombia and Ecuador. : .

MLA

Terborgh John W, Winter Blair, .: . .