Duldulao, A. C. (1977). An evaluation of extension coordination in and among forestry agencies in the Philippines [microform]. Photoduplication Service. University of the Philippines Library.
Citazione stile Chigago Style (17a edizione)Duldulao, Anacleto C. An Evaluation of Extension Coordination in and Among Forestry Agencies in the Philippines [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Citatione MLA (9a ed.)Duldulao, Anacleto C. An Evaluation of Extension Coordination in and Among Forestry Agencies in the Philippines [microform]. Photoduplication Service. University of the Philippines Library, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.