Zimmerman, P. R., & Peden, G. T. (1974). Mississippi personal income: Selected years, 1929-1971 (4th ed.). Division of Research, College of Business and Industry, Mississippi State University.
Chicago-referens (17:e uppl.)Zimmerman, Peggy R., och Guy Theron Peden. Mississippi Personal Income: Selected Years, 1929-1971. 4th ed. State College: Division of Research, College of Business and Industry, Mississippi State University, 1974.
MLA-referens (8:e uppl.)Zimmerman, Peggy R., och Guy Theron Peden. Mississippi Personal Income: Selected Years, 1929-1971. 4th ed. Division of Research, College of Business and Industry, Mississippi State University, 1974.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.