Guia del sistema de parques nacionales de Colombia
Castaño U., Carlos |
National parks
Sequoia and Kings Canyon : natural sciences research plan
1966
Sumner, Lowell |
Sprugel, George |
Linn, Robert M. |
Voyageurs national park proposal : a summary report
1967
West, Williard E. |
Williams, Roger S. |
Colombia's national parks : an analysis of management problems and perceived values
1975
Meganck, Richard Albert |
Evaluación y bases para el manejo del parque nacional de Tingo Maria (Huánuco, Perú)
1972
Dourojeanni, Marc J. |
Tovar S., Augusto |