Dardis, R., Learn, E. Measures of the degree and cost of economic protection of agriculture in selected countries. Washington: U. S. Government printing Office, 1967 68 p. : ill.
Dardis, R., Learn, E. Measures of the degree and cost of economic protection of agriculture in selected countries. Washington: U. S. Government printing Office, 1967 68 p. : ill.
Dardis, R., Learn, E. (1967) Measures of the degree and cost of economic protection of agriculture in selected countries, Washington: U. S. Government printing Office 68 p. : ill.
Dardis, R., & Learn, E. (1967). Measures of the degree and cost of economic protection of agriculture in selected countries. Washington: U. S. Government printing Office, 68 p. : ill.
Dardis R, Learn E. Measures of the degree and cost of economic protection of agriculture in selected countries. Washington: U. S. Government printing Office; 1967. p. 68 p. : ill.
