Cita APA (7th ed.)

United States. Bureau of Economic Analysis. (1974). Area economic projections, 1990: States and regions, BEA economic areas, SMSA's, non-SMSA portions of BEA economic areas. The Bureau.

Cita Chicago (17th ed.)

United States. Bureau of Economic Analysis. Area Economic Projections, 1990: States and Regions, BEA Economic Areas, SMSA's, Non-SMSA Portions of BEA Economic Areas. [Washington]: The Bureau, 1974.

Cita MLA (9th ed.)

United States. Bureau of Economic Analysis. Area Economic Projections, 1990: States and Regions, BEA Economic Areas, SMSA's, Non-SMSA Portions of BEA Economic Areas. The Bureau, 1974.