000 00570cam a2200181 4500
001 D5769
008 090401t xxu||||| |||| 00| 0 eng d
035 _a(Sirsi) u68012
041 _aeng
050 _a622.1
100 _aHumphreys, Kenneth K
245 _aPerformance of survey calculations and drawing of plats with a computer. Basic mathematics and computer techniques for coal preparation and mining Vol 17 Part 14 pp 199-218
350 _a0
520 _aPhotocopies can be made of this article
700 _aPudlo, George
942 _n0
948 _c04/03/1997
999 _c95062
_d95062