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082 0 4 _a561.3
100 1 _aTanai, Toshimasa
_9726387
245 1 0 _aRevisions of Ulmus and Zelkova in the Middle and Late Tertiary of western North America /
_cby Toshimasa Tanai and Jack A. Wolfe
260 _aWashington,D.C. :
_bUnited States Government Printing Office,
_c1977
300 _aiii, 14 p., 4 leaves of plates :
_bill. ;
_c29 cm.
490 1 _aGeological Survey professional paper ;
_v1026
500 _aIncludes index
504 _aBibliography: p. 10-11
650 0 _aElm, Fossil
_9726388
650 0 _aZelkova, Fossil
_9726389
650 0 _aPaleobotany
_yTertiary
_9726390
650 0 _aPaleobotany
_zNorth America
_9726391
700 1 _aWolfe, Jack A.,
_d1936-
_4jt. aut
_9726392
710 2 _aGeological Survey (U.S.)
887 _a
901 _aAD 125870
_b22.10.2010
902 _aU.S 561.3 T 153 r
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