61396 Washington, United States Government Printing Office, 1960. Quarto, wrappers, maps, figures, tables, illust., pp. iv, 863-903 plus folding charts in endpocket. Spine ends bumped, wrappers unevenly faded, sl. marked and sl. affected by insects, one library stamp, a good copy. GEOLOGICAL SURVEY PROFESSIONAL PAPER 260-Y. $12.00AUD
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