TY - CHAP A1 - Freedman, D. A1 - Thornton, A. A1 - Camburn, D. A1 - Alwin, D. A1 - Young-DeMarco, L. T1 - The life history calendar: A technique for collecting retrospective data Y1 - 1988 DO - 10.2307/271044 A3 - Clogg, C.C. T2 - Sociological Methodology 18 CY - San Francisco PB - Jossey-Bass publishers SP - 37 EP - -68 ER -