Cita APA (7a ed.)

Soroñgon, R. G. (1983). The first guide to climbing Mt. Apo.

Cita Chicago Style (17a ed.)

Soroñgon, Reynaldo G. The First Guide to Climbing Mt. Apo. Davao City, National Media Production Center, 1983.

Cita MLA (9a ed.)

Soroñgon, Reynaldo G. The First Guide to Climbing Mt. Apo. 1983.