000 00339nam a2200133Ia 4500
008 201006s1997 xx 000 0 und d
041 _aeng
100 _aPerry,H.T.
245 _aUnderstanding Orthodontics
250 _a1
260 _aLondon
_bQuintessence Pub
_c1997
650 _aOrthodontics(617.643)
650 _aOrthodontics(617.643)
999 _c79620
_d79620