APA aipamena

Duya, R. M. (1975). Validity study of the Otis-Lennon mental ability test in some grade one provincial primary schools [microform]. Photoduplication Service. University of the Philippines Library.

Chicago Style aipamena

Duya, Regina M. Validity Study of the Otis-Lennon Mental Ability Test in Some Grade One Provincial Primary Schools [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1975.

MLA aipamena

Duya, Regina M. Validity Study of the Otis-Lennon Mental Ability Test in Some Grade One Provincial Primary Schools [microform]. Photoduplication Service. University of the Philippines Library, 1975.