共 35 条
[1]
ARNOLD FA, 1960, DENT PROGR, V1, P8
[3]
BLAYNEY JR, 1962, J AM DENT A, V65, P596
[5]
CASSTEVENS TW, 1965, PUB AFFAIRS REP, V6, P1
[6]
CONWAY BJ, 1958, J AM WATERWORKS A, V50, P1330
[7]
DIETZ HA, 1952, HASTINGS L J, V4, P1
[9]
ELWELL KR, 1957, CLASSIFICATION APPRA
[10]
ELWELL KR, 1962, J AM DENT A, V65, P5