Rijt, Hetty van de. Why they cry : understanding child development in the first year / Hetty van de Rijt and Frans Plooij - London : Thorsons, 1996 - xii, 276 p. : ill. ; 24 cm Translated from the Dutch Includes index ISBN: 0722531613 Subjects--Topical Terms: Infants--CareCrying in infants LC Class. No.: HQ199 Dewey Class. No.: 649.122