00394nam a2200121Ia 4500020001800000082002500018100004300043245007700086260004400163300002700207500000500234700003300239  a9780195152968  a330.015195bSi617.AL  aSinger, Judith D. and Willett, John B.  aApplied longitudinal data analysisbmodeling change and event occurrence  aNew YorkbOxford University Pressc2003  axx, 644p. Bibl. Index.  a  aWillett, John B. ; jt. auth.