Coastal resources management : tourism in peninsular Malaysia
1990
Poh-Poh, Wong |
Tourism
On interpretation : sociology for interpreters of natural and cultural history
1992
Machlis, Gary E. |
Field, Donald R. |
Tourisme et environnement : du tourisme de nature à l'écotourisme
1993
Blangy, Sylvie |
Ecotourism : a guide for planners and managers
1993
Lindberg, Kreg |
Hawkins, Donald E. |
International research in the Antarctic
1987
Fifield, Richard |
Informe del Taller Interamericano sobre Areas Naturales Protegidas, Mérida 14 al 18 mayo de 1990
1991
Policies for maximizing nature tourism's ecological and economic benefits
1991
Lindberg, Kreg |
Managing protected areas in Africa
1992
Lusigi, Walter J. |
Ecotourism : the potentials and pitfalls
1990
Boo, Elizabeth |