MLA

de Costa, Aníbal, et al. To Conserve Unimpaired. Island Press/Center for Resource Economics, 2013.

APA

de Costa, A., Guedes, J. Miranda, Keiter, R. B, & Varum, H. (2013). To Conserve Unimpaired. Island Press/Center for Resource Economics.

Chicago

de Costa, Aníbal, João Miranda Guedes, Robert B Keiter, and Humberto Varum. To Conserve Unimpaired. : Island Press/Center for Resource Economics, 2013.