@book{58792,
	author = {BORTHWIKC-DUFFY, S.A.},
	title = {EVALUATION AND MEASUREMENT OF QUALITY OF LIFE: SPECIAL CONSIDERATIONS FOR PERSONS WITH MENTAL RETARDATION. EN: QUALITY OF LIFE. VOLUME I: CONCEPTUALIZATION AND MEASUREMENT},
	publisher = {AMERICAN ASSOCIATION ON MENTAL RETARDATION},
	year = {1996},
	address = {WASHINGTON,DC (USA)}
}