University of the Philippines (Diliman). Science Education Center. (1971). Practical chemistry for secondary schools. s.n.
Chicago-referens (17:e uppl.)University of the Philippines (Diliman). Science Education Center. Practical Chemistry for Secondary Schools. [Quezon City: s.n, 1971.
MLA-referens (9:e uppl.)University of the Philippines (Diliman). Science Education Center. Practical Chemistry for Secondary Schools. s.n, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.