Gaya APA

Drumm, A., Moore, A. (2002). Ecotourism Development A Manual for Conservation Planners and Managers (Volume 1). United States of America: Nature Conservancy.

Gaya MLA

Drumm, Andy., Moore, Alan. "Ecotourism Development A Manual for Conservation Planners and Managers". Volume 1 United States of America: Nature Conservancy, 2002. eBook.