Παραπομπή σε μορφή APA (7η εκδ.)

Ching, P., & Natividad-Carlos, F. (1996). The choice of adult health care provider and access across income groups: The Philippine case. UPSEC.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ching, Panfila, και Fidelina Natividad-Carlos. The Choice of Adult Health Care Provider and Access Across Income Groups: The Philippine Case. Diliman, Q.C: UPSEC, 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ching, Panfila, και Fidelina Natividad-Carlos. The Choice of Adult Health Care Provider and Access Across Income Groups: The Philippine Case. UPSEC, 1996.