University of Maryland, College Park. Bureau of Business and Economic Research. (1954). Southern Maryland, a tobacco economy.
Chicago-viite (17. p.)University of Maryland, College Park. Bureau of Business and Economic Research. Southern Maryland, a Tobacco Economy. College Park, 1954.
MLA-viite (8. p.)University of Maryland, College Park. Bureau of Business and Economic Research. Southern Maryland, a Tobacco Economy. 1954.
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