Cita APA (7th ed.)

Valdez, L. G. J. The content validity and predictive ability of the mathematics placement examination in Central Philippine Unoversity.

Cita Chicago (17th ed.)

Valdez, Luis G. Jr. The Content Validity and Predictive Ability of the Mathematics Placement Examination in Central Philippine Unoversity. Quezon City: College of Education, University of the Philippines, Diliman, 1992.

Cita MLA (9th ed.)

Valdez, Luis G. Jr. The Content Validity and Predictive Ability of the Mathematics Placement Examination in Central Philippine Unoversity.