Gonsalves, C. Y. (1961). The proficiency levels of college freshmen in the University of the Philippines for college mathematics, 1961-1962. s.n.].
Chicago-referens (17:e uppl.)Gonsalves, Corazon Y. The Proficiency Levels of College Freshmen in the University of the Philippines for College Mathematics, 1961-1962. [Quezon City: s.n.], 1961.
MLA-referens (9:e uppl.)Gonsalves, Corazon Y. The Proficiency Levels of College Freshmen in the University of the Philippines for College Mathematics, 1961-1962. s.n.], 1961.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.