Παραπομπή APA

Spencer, J. E., & Geary, R. C. (1974). Exercises in mathematical economics and econometrics: With outlines of theory. London: Charles Griffin Co. Ltd..

Παραπομπή Chicago Style

Spencer, J. E., and R. C. Geary. Exercises in Mathematical Economics and Econometrics: With Outlines of Theory. London: Charles Griffin Co. Ltd., 1974.

Παραπομπή MLA

Spencer, J. E., and R. C. Geary. Exercises in Mathematical Economics and Econometrics: With Outlines of Theory. London: Charles Griffin Co. Ltd., 1974.

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