000 00291nam a22001217a 4500
008 170222b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a616 31
100 _a5
101 _aSHS
245 _aTHE DIAGNOSIS AND TREATMENT PERIODONTAL DISEASE
_cPRICHARD .J.F
942 _2udc
_cBK
999 _c6029
_d6029