Cramer, J. (1971). Empirical econometrics. North-Holland Pub.
Chicago-čujuhus (17. p.)Cramer, J.S. Empirical Econometrics. Amsterdam: North-Holland Pub, 1971.
MLA-čujuhus (9. p.)Cramer, J.S. Empirical Econometrics. North-Holland Pub, 1971.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.