Παραπομπή σε μορφή APA (7η εκδ.)

Obal, M. R., & Dorado, D. A. D. (2015). An economic valuation of Marikina City library using revealed preference methods.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Obal, Manilyn R., και Dan Anthony D. Dorado. An Economic Valuation of Marikina City Library Using Revealed Preference Methods. Quezon City : School of Library and Information Studies, University of the Philippines Diliman, 2015.

Παραπομπή σε μορφή MLA (9th εκδ.)

Obal, Manilyn R., και Dan Anthony D. Dorado. An Economic Valuation of Marikina City Library Using Revealed Preference Methods. 2015.