Mitchell, R. J. (1977). Merit rating in industry and the armed services [microform]. Photoduplication Service. University of the Philippines Library.
Chicago-referens (17:e uppl.)Mitchell, Robert Jouett. Merit Rating in Industry and the Armed Services [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
MLA-referens (9:e uppl.)Mitchell, Robert Jouett. Merit Rating in Industry and the Armed Services [microform]. Photoduplication Service. University of the Philippines Library, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.