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The report / National Science Board
National Science Foundation / National Science Board - Washington, DC : US Gov.Print.Off. - [1.]1969; 2.1970 -
Persistent link: https://www.econbiz.de/10000361094
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Science & engineering indicators
National Science Foundation / National Science Board - Washington, DC : US Gov.Print.Off. - 8.1987 -
Persistent link: https://www.econbiz.de/10000535003
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Science indicators
National Science Foundation / National Science Board - Washington, DC : US Gov.Print.Off. - 1.1972(1973) - 6.1982(1983); 7.1985
Persistent link: https://www.econbiz.de/10000359737
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Science and engineering indicators
National Science Foundation / National Science Board - Washington, DC - 2000 -
Persistent link: https://www.econbiz.de/10001597036