Mequi, E. (1976). The administrative and supervisory difficulties of elementary school head teachers of Cagayan I and implications for their inservice education [microform]. Photoduplication Service. University of the Philippines Library.
Cita Chicago Style (17a ed.)Mequi, Estrella. The Administrative and Supervisory Difficulties of Elementary School Head Teachers of Cagayan I and Implications for Their Inservice Education [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
Cita MLA (9a ed.)Mequi, Estrella. The Administrative and Supervisory Difficulties of Elementary School Head Teachers of Cagayan I and Implications for Their Inservice Education [microform]. Photoduplication Service. University of the Philippines Library, 1976.