U.S. agricultural research deflators: 1890–1985

Historical Statistics of the United States: Colonial Times to 1970

Lawrence J. Buntin, U. S. Bureau of the Census · Journal of Marketing Research · 1976 · 760 citations

Humanities, History, Historical Demography +14

Causal Relationships between Public Sector Agricultural Research Expenditures and Output

Philip G. Pardey, Barbara J. Craig · American Journal of Agricultural Economics · 1989 · 134 citations

Social Sciences, Agricultural Economics, Economics +10

Return to Poultry Research in the United States

Willis L. Peterson · Journal of Farm Economics · 1967 · 120 citations

Agriculture, Agricultural Economics, Economics +13

The Contribution of Agricultural Research to Production

Robert E. Evenson · Journal of Farm Economics · 1967 · 110 citations

Agriculture, Agricultural Economics, Agricultural Development +14

The Measurement of Scientific and Technical Activities (“Frascati Manual”)

European Journal of Engineering Education · 1977 · 41 citations

Engineering, Physics, Instrumentation +11