U.S. Bureau of Labor Statistics & United States. National Science Foundation. (1953). Science and engineering in American industry; report on a survey. United States Govt. Print. Off.
Chicago-viite (17. p.)U.S. Bureau of Labor Statistics ja United States. National Science Foundation. Science and Engineering in American Industry; Report on a Survey. Washington: United States Govt. Print. Off, 1953.
MLA-viite (9. p.)U.S. Bureau of Labor Statistics ja United States. National Science Foundation. Science and Engineering in American Industry; Report on a Survey. United States Govt. Print. Off, 1953.
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