(1998). Protecting and restoring calamity areas. Philippine Council for Agriculture, Forestry and Natural Resources Research and development.
Chicago-referens (17:e uppl.)Protecting and Restoring Calamity Areas. Los Banos, Laguna: Philippine Council for Agriculture, Forestry and Natural Resources Research and development, 1998.
MLA-referens (9:e uppl.)Protecting and Restoring Calamity Areas. Philippine Council for Agriculture, Forestry and Natural Resources Research and development, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.