Economic perspectives on nature tourism, conservation and development
1997
Wells, Michael P. |
Tourism development
Proposed Komodo national park : management plan 1978/79-1982/83
1977
Blower, J. H. |
van der Zon, A. P. M. |
Mulyana, Yaya |
Proposed Baluran national park : management plan 1978/79-1982/83
1977
Wind, Jan |
Amir, Harry |
La Albufera de Valencia : un estudio piloto
1975
Defauce Ruiz, Carlos |
El turismo en los parques nacionales y otras areas protegidas de America Latina
1993
Oltremari Arregui, Juan |
Proposed Gyobyu Reservoir Recreation Area : draft master plan
1983
Salter, Richard E. (Richard Edward) |
Sayer, Jeffrey |
Maung Maung Than, U. |
Il parco del Ticino
1980
Bogliani, Giuseppe |
Pigazzini, Vittorio |