Ravalo, J. R. (1976). A critical analysis of Division work conferences held in Albay from January, 1959 to December, 1961 [microform]. Photoduplication Service. University of the Philippines Library.
Citazione stile Chigago Style (17a edizione)Ravalo, Jose R. A Critical Analysis of Division Work Conferences Held in Albay from January, 1959 to December, 1961 [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
Citatione MLA (9a ed.)Ravalo, Jose R. A Critical Analysis of Division Work Conferences Held in Albay from January, 1959 to December, 1961 [microform]. Photoduplication Service. University of the Philippines Library, 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.