Παραπομπή σε μορφή APA (7η εκδ.)

Barrios, E. B. (1996). Econometric modeling project for industry, exports and investments: GVA component. U.P. Statistical Center Research Foundation, Inc.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Barrios, Erniel B. Econometric Modeling Project for Industry, Exports and Investments: GVA Component. Quezon City: U.P. Statistical Center Research Foundation, Inc, 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Barrios, Erniel B. Econometric Modeling Project for Industry, Exports and Investments: GVA Component. U.P. Statistical Center Research Foundation, Inc, 1996.