Philippines (Republic). National Science Development Board. Research and development expenditures of government agencies, fiscal years 1965 and 1966. [s.n.
Citazione stile Chigago Style (17a edizione)Philippines (Republic). National Science Development Board. Research and Development Expenditures of Government Agencies, Fiscal Years 1965 and 1966. Taguig, Rizal: [s.n.
Citatione MLA (9a ed.)Philippines (Republic). National Science Development Board. Research and Development Expenditures of Government Agencies, Fiscal Years 1965 and 1966. [s.n.
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