Philippines. University. Science Education Center. (1967). High school mathematics 2. U.P. SEC.
Chicago-referens (17:e uppl.)Philippines. University. Science Education Center. High School Mathematics 2. Quezon City: U.P. SEC, 1967.
MLA-referens (9:e uppl.)Philippines. University. Science Education Center. High School Mathematics 2. U.P. SEC, 1967.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.