Cita APA (7a ed.)

Hoefer, H. J. (1991). Insight guides: Philippines. APA Pub.

Cita Chicago Style (17a ed.)

Hoefer, Hans J. Insight Guides: Philippines. Singapore: APA Pub, 1991.

Cita MLA (9a ed.)

Hoefer, Hans J. Insight Guides: Philippines. APA Pub, 1991.