Retherford, R. D., & Choe,Minja Kim. (1993). Statistical models for causal analysis. John Wiley &Sons.
Čikaški stil citiranjaRetherford, Robert D., i Choe,Minja Kim. Statistical Models for Causal Analysis. New York: John Wiley &Sons, 1993.
MLA način citiranjaRetherford, Robert D., i Choe,Minja Kim. Statistical Models for Causal Analysis. John Wiley &Sons, 1993.
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