Cita APA (7th ed.)
National Science Foundation. (1975). Grants and awards for fiscal year 1974. Government Print. Off.
Cita Chicago (17th ed.)
National Science Foundation. Grants and Awards for Fiscal Year 1974. Washington: Government Print. Off, 1975.
Cita MLA (9th ed.)
National Science Foundation. Grants and Awards for Fiscal Year 1974. Government Print. Off, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.