Philippines. (1964). The Science Act of 1958: Rep. Act no. 2067, as amended by Rep. Act. no. 3589. s.n.
Chicago-referens (17:e uppl.)Philippines. The Science Act of 1958: Rep. Act No. 2067, as Amended by Rep. Act. No. 3589. [S.l: s.n, 1964.
MLA-referens (9:e uppl.)Philippines. The Science Act of 1958: Rep. Act No. 2067, as Amended by Rep. Act. No. 3589. s.n, 1964.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.