Ferrer, M. (1975). An analytical study of the mental ability, academic achievement, and personality characteristics of grade, IV, V, VI and VII pupils at Good Shepherd Special schools [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-referens (17:e uppl.)Ferrer, Mary. An Analytical Study of the Mental Ability, Academic Achievement, and Personality Characteristics of Grade, IV, V, VI and VII Pupils at Good Shepherd Special Schools [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.
MLA-referens (9:e uppl.)Ferrer, Mary. An Analytical Study of the Mental Ability, Academic Achievement, and Personality Characteristics of Grade, IV, V, VI and VII Pupils at Good Shepherd Special Schools [microform]. Photoduplication Service, University of the Philippines Library, 1975.