000 00398cam a2200145 4500
020 _a0801620945
050 0 0 _aMED.RK521
_b.H35
100 1 _aHarvold, Egil P.,
245 1 4 _aThe activator in interceptive orthodontics
260 _aSaint Louis,
_bC. V. Mosby Co.,
_c1974.
300 _ax, 229 p.
_bill.
650 0 _aOrthodontics, Interceptive.
650 2 _aOrthodontics, Preventive.
942 _cBK
999 _c12930
_d12930