1
2
Published 1993
“...World Congress on National Parks and Protected Areas...”
Conference Proceeding
Book
3
Published 1993
“...World Congress on National Parks and Protected Areas...”
Book
4
Published 1992
“...World Congress on National Parks and Protected Areas, IV th....”
Book
5
Published 1992
“...World Congress on National Parks and Protected Areas, 14th...”
Book
6
Published 1994
“...World Congress on National Parks and Protected Areas, IVth Caracas Venezuela...”
Book
7
Published 1993
“...World Congress on National Parks and Protected Areas, IV th., 1992...”
Book