Carpenter, R. N. (1966). Guidelist for marketing research and economic forecasting. American Management Asso.
Chicago-viite (17. p.)Carpenter, Robert N. Guidelist for Marketing Research and Economic Forecasting. [New York]: American Management Asso, 1966.
MLA-viite (9. p.)Carpenter, Robert N. Guidelist for Marketing Research and Economic Forecasting. American Management Asso, 1966.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.