Paleoecological and floristic heterogeneity in the plant-fossil record : an analysis based on the Eocene of Washington / by Robyn J. Burnham
(U.S. Geological Survey bulletin ; 2085) (Evolution of sedimentary basins--Cenozoic sedimentary basins in southwest Washington and northwest Oregon ; B)
"U.S. Department of the Interior, U.S. Geological Survey"--T.p. versoShipping list no.: 94-0410-PPhysical description for original version: iv, 36 p. ...