Valavanis, S., & Conrad, A. h. (1959). Econometrics: An introduction to maximum likelihood methods. toronto.
Čikaški stil citiranja (17. izdanje)Valavanis, Stefan, i Alfred h. Conrad. Econometrics: An Introduction to Maximum Likelihood Methods. london: toronto, 1959.
MLA način citiranja (9. izdanje)Valavanis, Stefan, i Alfred h. Conrad. Econometrics: An Introduction to Maximum Likelihood Methods. toronto, 1959.