Παραπομπή σε μορφή APA (7η εκδ.)

Abrea, L. A. Y. (2004). Child labor-profile of working children in Pampanga. University of the Philippines Diliman Extension Program in Pampanga.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Abrea, Lea Angeli Y. Child Labor-profile of Working Children in Pampanga. Pampanga: University of the Philippines Diliman Extension Program in Pampanga, 2004.

Παραπομπή σε μορφή MLA (9th εκδ.)

Abrea, Lea Angeli Y. Child Labor-profile of Working Children in Pampanga. University of the Philippines Diliman Extension Program in Pampanga, 2004.