Battelle Memorial Institute and State Science & Technology Institute. Survey of State Research and Development Expenditures: Fiscal Year 1995. Columbus: September 1998.
Congressional Research Service, by Wendy Schacht. State Technology Development Strategies: The Role of High Tech Clusters. Washington DC: October 1998.
National Science Board. Science & Engineering Indicators 1991. NSB 91-1, Arlington VA: 1991.
National Science Foundation (NSF). R&D Activities in State Government Agencies: Fiscal Years 1964 and 1965. NSF 67-16, Washington DC: 1967.
NSF. Research and Development in State and Local Governments: Fiscal Year 1977. NSF 79-327, Washington DC: 1979.
NSF. Research and Development Expenditures of State Government Agencies: Fiscal Years 1987 and 1988. NSF 90-309, Washington DC: 1990.
NSF, by Steven Payson. National Patterns of R&D Resources: 1998 (early release tables). Arlington VA: 1998a.
NSF. Academic Research and Development Expenditures: Fiscal Year 1997 (early release tables). Arlington VA: 1998b.
State Science & Technology Institute (SSTI). Science Technology and the Governors: Excerpts from the 1999 Gubernational Addresses. Columbus: April 1999.
SSTI. State Science and Technology Strategic Planning: Creating Economic Opportunity. Columbus: October 1997.