Measurement in the Social Sciences Autor Hubert M. Blalock 30 iun 1974 Paperback Preț: 414.39 lei 6-8 săpt.
Causal Inferences in Nonexperimental Research Autor Hubert M. Blalock 31 dec 1966 Paperback Preț: 341.84 lei 6-8 săpt.