000 00250pam a2200109a 44500
082 _a530.1
_bW33
100 _aWatson, W,H
245 1 _aON UNDERSTANDING PHYSICS
260 _a
_bCambridge University Press
_c1938
964 _gCIRC
997 _a3050 C
999 _c409790
_d409790