Old thoughts in new ideas tagbanua forest use and state conservation measures at Puerto Princesa Subterranean River National Park, Palawan Island, Philippines - Dressler, Wolfram Heinz (Ottawa Library and Archives Canada = Bibliothèque et Archives Canada, 2006)
Thesis (Ph.D.)--McGill University, 2005.
Keywords: Puerto Princesa Subterranean River National Park; National parks and reserves; Conservation of natural resources