Dòng Nội dung
1
An Introduction to Ecotourism Planning. / Andy Drumm, Alan Moore.
Arlington, VA, USA : The Nature Conservancy, 2005
372 p.: ill. ; 28 cm.
2
Ecotourism development : a manual for conservation planners and manager. Andy Drumm, Alan Moore Volume 1: An introduction to ecotourism planning /
Arlington, Va. : Nature Conservancy, 2005
96 p. ; 30 cm.