Kojima, Hiroshi Determinants of first marital formation in Japan : does the sibling confliguration matter? / Hiroshi Kojima - Tokyo : Ministry of Health and Welfare (MHW) , 1992 - 41p. : ill. ; 30 cm. - Working paper No. 10 . Includes bibliographical references. Subjects--Topical Terms: Marriage--Japan Gov. Doc. Class. No.: JP MHW IPP WP-10