Montes, A. D. (1976). Errors in language and mechanics in themes written by sixth grade pupils [microform]. Photoduplication Service. University of the Philippines Library.
Chicago-referens (17:e uppl.)Montes, Anita D. Errors in Language and Mechanics in Themes Written by Sixth Grade Pupils [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
MLA-referens (9:e uppl.)Montes, Anita D. Errors in Language and Mechanics in Themes Written by Sixth Grade Pupils [microform]. Photoduplication Service. University of the Philippines Library, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.