Cita APA (7a ed.)

Philippine Foundation for Science and Technology. (1990). Philippine science centrum explain manual. PFST.

Cita Chicago Style (17a ed.)

Philippine Foundation for Science and Technology. Philippine Science Centrum Explain Manual. Manila: PFST, 1990.

Cita MLA (9a ed.)

Philippine Foundation for Science and Technology. Philippine Science Centrum Explain Manual. PFST, 1990.