@book{147916,
	author = {PARK, H. and GREENBERG, J.S.},
	title = {PARENTING GRANDCHILDREN. EN: HANDBOOK OF GERONTOLOGY. EVIDENCE-BASED APPROACHES TO THEORY, PRACTICE AND POLICY},
	publisher = {JOHN WILEY & SONS},
	year = {2007},
	address = {WEST SUSSEX}
}