Παραπομπή σε μορφή APA (7η εκδ.)

Beltran, A. (2001). A test development research: Liberalism questionnaire. University of the Philippines Diliman Extension Program in Pampanga.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Beltran, Aireen. A Test Development Research: Liberalism Questionnaire. Pampanga: University of the Philippines Diliman Extension Program in Pampanga, 2001.

Παραπομπή σε μορφή MLA (9th εκδ.)

Beltran, Aireen. A Test Development Research: Liberalism Questionnaire. University of the Philippines Diliman Extension Program in Pampanga, 2001.