@book{22049,
	author = {RAMEY, C.T. and MACPHEE, D.},
	title = {DEVELOPMENTAL RETARDATION: A SYSTEMS THEORY PERSPECTIVE ON RISK AND PREVENTIVE INTERVENTION. EN: RISK IN INTELLECTUAL AND PSYCHOSOCIAL DEVELOPMENT.},
	publisher = {ACADEMIC PRESS},
	year = {1986},
	address = {NUEVA YORK}
}