000 00281 a2200109 4500
082 _a543.3
_bIn7a2
245 1 _aAPPROVED METHODS FOR THE PHYSICAL AND CHEMICAL EXAMINATION OF WATER
250 _a2nd
260 _aLondon
_bWilliam Heffer
_c1953
964 _gCIRC
997 _a2784 C
999 _c451792
_d451792