National Science Foundation (U.S.). (1969). Scientific technical and health personnel in the federal government 1969. U.S. Government Printing Office.
Chicago Style aipamenaNational Science Foundation (U.S.). Scientific Technical and Health Personnel in the Federal Government 1969. Washington, D.C: U.S. Government Printing Office, 1969.
MLA aipamenaNational Science Foundation (U.S.). Scientific Technical and Health Personnel in the Federal Government 1969. U.S. Government Printing Office, 1969.
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