Statistical models for causal analysis / Robert D. Retherford and Minja Kim Choe. Retherford, Robert D. Choe, Minja Kim. 1941- jt. aut. Multivariate analysis. QA278 .R47 1993 514.535 20 RES "A Wiley-Interscience publication." Includes bibliographical references and index. New York : Wiley, c1993. c1993. 1993 Text xiv, 258 p. : eng