Gaya APA

Pindyck, R, S, &, R, D, L. (1991). Econometric Models and Economic Forecasts, 3rd-ed (3). Singapore: McGraw-Hill Book Company.

Gaya MLA

Pindyck, Robert, S., &, Rubinfeld,, Daniel, L. "Econometric Models and Economic Forecasts, 3rd-ed". 3 Singapore: McGraw-Hill Book Company, 1991. Text.