APA-referens (7:e uppl.)

Philippines. National Science Development Board. (1962). Research and development expenditures of private industry in 1960. [s.n.

Chicago-referens (17:e uppl.)

Philippines. National Science Development Board. Research and Development Expenditures of Private Industry in 1960. Manila: [s.n, 1962.

MLA-referens (9:e uppl.)

Philippines. National Science Development Board. Research and Development Expenditures of Private Industry in 1960. [s.n, 1962.