Pastoral economy, property rights and traditional mutual assistance mechanisms among the Ngorongoro and Salei Maasai of Tanzania : draft
1994
Potkanski, Tomasz |
National parks
Volcanoes of the south wind : a field guide to the volcanoes and landscape of Tongariro national park
Williams, Karen |
Plan maestro para el establicimiento y manejo del area del Volcan Masaya como parque nacional
1975
Incer-Barquero, Jaime |
Gutierrez-Huete, Claudio |
Kakadu : a world heritage of unsurpassed beauty
1986
Ovington, Derrick |
Australia's World Heritage sites
1985
Serventy, Vincent |
