Algae reefs and oolites of the Green River Formation.
1929. United States Geological Survey Prof. paper 154-G; pp. ii, 203-223, 19 plts. h.t. with phot. & microphot. 1 fold-out plt. with geol. section, 1 plt. with map. Orig. reprint without cover, as issued, libr. ticket taped to corner of title page, contents very good, 4t.