Olofson, H. (1982). Social forestry from one anthropologist's point of view. Integrated Research Center, De La Salle University.
Lua i Stíl Chicago (17ú heag.)Olofson, Harold. Social Forestry from One Anthropologist's Point of View. Manila: Integrated Research Center, De La Salle University, 1982.
Lua MLA (9ú heag.)Olofson, Harold. Social Forestry from One Anthropologist's Point of View. Integrated Research Center, De La Salle University, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.