000 002710000a22001210004500
245 _aPreliminary research report
100 _aHartgen, David T.
100 _aTanner, George H.
260 _a[s.l.]
_a[s.n.]
_c[n.d.]
300 _a15p.
041 _aEN
942 _cRR
999 _c45678
_d45678