Valencia, E. (1977). The organization of the Department of Health, 1958 to 1961; problems in implementation from the viewpoint of the department head [microform]. Photoduplication Service.
Chicago-viite (17. p.)Valencia, Elpidio. The Organization of the Department of Health, 1958 to 1961; Problems in Implementation from the Viewpoint of the Department Head [microform]. Quezon City: Photoduplication Service, 1977.
MLA-viite (9. p.)Valencia, Elpidio. The Organization of the Department of Health, 1958 to 1961; Problems in Implementation from the Viewpoint of the Department Head [microform]. Photoduplication Service, 1977.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.