APA (7th ed.) Citation

University of the Philippines System. Science Education Center. (1975). Elementary school mathematics 4. U.P.S.E.C.].

Chicago Style (17th ed.) Citation

University of the Philippines System. Science Education Center. Elementary School Mathematics 4. [Quezon City: U.P.S.E.C.], 1975.

MLA (9th ed.) Citation

University of the Philippines System. Science Education Center. Elementary School Mathematics 4. U.P.S.E.C.], 1975.