CCausal Inferences in Nonexperimental ResearchCausal Inferences in Nonexperimental Researchde Hubert M. BlalockEdiciones (1)Causal Inferences in Nonexperimental Research (1980)W W Norton & Co Ltd · inglés · ISBN 9780393006421Más obras de Hubert M. BlalockSociological theory and researchQuantitative sociology