Burford, R. L. (1966). A projections model for small area economies. Bureau of Business and Economic Research, School of Business Administration, Georgia State College.
Lua i Stíl Chicago (17ú heag.)Burford, Roger L. A Projections Model for Small Area Economies. Atlanta: Bureau of Business and Economic Research, School of Business Administration, Georgia State College, 1966.
Lua MLA (8ú heag.)Burford, Roger L. A Projections Model for Small Area Economies. Bureau of Business and Economic Research, School of Business Administration, Georgia State College, 1966.
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