@book{11436,
	author = {HOBEL, C.J.},
	title = {OBSTETRICS AND PERINATOLOGY. IMPLICATIONS FOR PREVENTIONIN MENTAL RETARDATIONEN: PREVENTIVE AND CURATIVE INTERVENTION IN MENTALRETARDATIob},
	publisher = {PAUL H.BROOKES},
	year = {1988},
	address = {BALTIMORE (USA)}
}