Valavanis, S., & Conrad, A. h. (1959). Econometrics: An introduction to maximum likelihood methods. toronto.
Chicago-čujuhus (17. p.)Valavanis, Stefan, juo Alfred h. Conrad. Econometrics: An Introduction to Maximum Likelihood Methods. london: toronto, 1959.
MLA-čujuhus (9. p.)Valavanis, Stefan, juo Alfred h. Conrad. Econometrics: An Introduction to Maximum Likelihood Methods. toronto, 1959.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.