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GRILICHES Z, 1960, J FARM EC DEC
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*US BUR CENS, 1956, STAT ABSTR US
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*US BUR CENS, 1960, CENS POP
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*US DEP COMM, 1959 CENS AGR, V1
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*US DEP COMM, 1950 CENS AGR, V2
[10]
US Department of Agriculture, FARM LAB