Gaya APA

Pfaffeberger, R, C., Patterson, J, H. (1997). STATISTICAL METHODS FOR BUSINESS AND ECONOMICS . USA: RICHARD D. IRWIN, INC.

Gaya MLA

Pfaffeberger, Roger, C.., Patterson, James, H.. "STATISTICAL METHODS FOR BUSINESS AND ECONOMICS". USA: RICHARD D. IRWIN, INC, 1997. Text.