APA Style

G., D, R, L. (1993). The perceived influence of management competencies of the grade school principals on teacher's and on pupils' performance among Elementary schools in San Pablo City. . San Pablo City, Laguna: San Pablo Colleges.

MLA Style

G., Del, Rio,, Lucy. "The perceived influence of management competencies of the grade school principals on teacher's and on pupils' performance among Elementary schools in San Pablo City.". San Pablo City, Laguna: San Pablo Colleges, 1993. Manuscript.