APA引文

U.S. National Science Foundation. (1969). An analysis of federal RD funding by function [1969-74]. National Science Foundation.

Chicago Style (17th ed.) Citation

U.S. National Science Foundation. An Analysis of Federal RD Funding by Function [1969-74]. Washington: National Science Foundation, 1969.

MLA引文

U.S. National Science Foundation. An Analysis of Federal RD Funding by Function [1969-74]. National Science Foundation, 1969.