APA Style

Gatpandan, P, H, &, R, A, M. (2011). Workbook in C Programming Computer Programming 1 . Mandaluyong City: National Book Store.

MLA Style

Gatpandan, Paulino, H., &, Rollan,, Azenith, M.. "Workbook in C Programming Computer Programming 1". Mandaluyong City: National Book Store, 2011. Text.