Leftwich, R. H., & Sharp, A. M. (1978). Economics of social issues (3d ed.). Business Publications.
Cita Chicago Style (17a ed.)Leftwich, Richard H., y Ansel M. Sharp. Economics of Social Issues. 3d ed. Dallas: Business Publications, 1978.
Cita MLA (8a ed.)Leftwich, Richard H., y Ansel M. Sharp. Economics of Social Issues. 3d ed. Business Publications, 1978.
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