References

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National Science Foundation (NSF). 1960. Science and Engineering in American Industry: 1956. NSF 59-50. Washington, DC: U.S. Government Printing Office.

National Science Foundation (NSF). 1994. "1992 R&D Spending by U.S. Firms Rises, NSF Survey Improved." SRS Data Brief. NSF 94-325. Arlington, VA.

National Science Foundation (NSF). 1995a. "1993 Spending Falls for U.S. Industrial R&D, Nonmanufacturing Share Increases." SRS Data Brief. NSF 95-325. Arlington, VA.

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National Science Foundation (NSF). 1996a. "1994 Company Funding of U.S. Industrial R&D Rises as Federal Support Continues to Decline." SRS Data Brief. NSF 96-310. Arlington, VA.

National Science Foundation (NSF). 1996b. National Patterns of R&D Resources: 1996. NSF 96-333. Arlington, VA.

National Science Foundation (NSF). 1996c. Research and Development in Industry:  1993. NSF 96-304. Arlington, VA.

National Science Foundation (NSF). 1997a. "1995 U.S. Industrial R&D Rises, NSF Survey Statistics Expanded to Emphasize Role of Nonmanufacturing Industries." SRS Data Brief. NSF 97-332. Arlington, VA.

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National Science Foundation (NSF). 2003a. "U.S. Industry Sustains R&D Expenditures Despite Decline in Performers' Sales and Employment During 2001." SRS InfoBrief. NSF 04-301. Arlington, VA.

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National Science Foundation (NSF). 2005b. "Increase in U.S. Industrial R&D Expenditures Reported for 2003 Makes Up for Earlier Decline" SRS InfoBrief. NSF 06-305. Arlington, VA.

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U.S. Bureau of the Census. 1993. "Effects of the 1987 SIC Revision on Company Classification in the Survey of Industrial Research and Development (R&D)." Technical Memorandum. December 6.

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