Ravens, Jan Van Expanding early childhood care and educaion : how much does it co st ? / Jan Van Ravens and Carlos Aggio - The Netherlands : Bernard Van Leer Foundation, 2008 - x, 72 p. : ill. ; 30 cm. - Early Childhood Development working paper; no.446 . Includes bibliographical references (p.65-67) Subjects--Topical Terms: Child careEarly childhood education Dewey Class. No.: 649.1