@book{58788,
	author = {HUGHES, C. and HWANG, B.},
	title = {ATTEMPTS TO CONCEPTUALIZE AND MEASURE QUALITY OF LIFE. EN: QUALITY OF LIFE. VOLUME I: CONCEPTUALIZATION AND MEASUREMENT},
	publisher = {AMERICAN ASSOCIATION ON MENTAL RETARDATION},
	year = {1996},
	address = {WASHINGTON,DC (USA)}
}