APA Style

Zulueta, F, M., Liwag, D, B. (2006). Social Problems and Issues in the Philippines: Revised Edition . Mandaluyong City, Philippines: National Book Store.

MLA Style

Zulueta, Francisco, M.., Liwag, Dolores, B.. "Social Problems and Issues in the Philippines: Revised Edition". Mandaluyong City, Philippines: National Book Store, 2006. Text.