APA (7e ed.) Bronvermelding

Bernardo, V. (1974). A study of the sequence of mathematics in the high school [microform]. Photoduplication Service, University of the Philippines Library.

Chicago (17e ed.) Bronvermelding

Bernardo, Vicenta. A Study of the Sequence of Mathematics in the High School [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1974.

MLA (9e ed.) Bronvermelding

Bernardo, Vicenta. A Study of the Sequence of Mathematics in the High School [microform]. Photoduplication Service, University of the Philippines Library, 1974.