000
00289pam a2200109a 44500
082
_a
TR
_b
TPR-71
100
_a
R. R. Schehl
245
1
_a
Computerized system for quantitative X-ray diffraction analysis of pyrite in coal
260
_a
_b
_c
700
_a
R. A. Friedel
997
_a
TR3889 C
999
_c
404981
_d
404981