Παραπομπή σε μορφή APA (7η εκδ.)

Graduate Educational and Research Foundation, Caliwara, C. A., & Siopongco, J. O. (1975). Consultancy inputs. GEARF Foundation.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Graduate Educational and Research Foundation, Cesar A. Caliwara, και Joaquin O. Siopongco. Consultancy Inputs. Manila: GEARF Foundation, 1975.

Παραπομπή σε μορφή MLA (9th εκδ.)

Graduate Educational and Research Foundation, et al. Consultancy Inputs. GEARF Foundation, 1975.