000 00287pam a2200109a 44500
082 _aTR
_bIC-7565
100 _aArno C. Fieldner
245 1 _aAnnual report of research and technolog'c work on coal, fiscal year 1949
260 _a
_b
_c
700 _aSidney Gottlieb
997 _aTR5223 C
999 _c405398
_d405398