Verlag: Nebraska Geological Survey Bulletin 11, Second Series, 1937, 64 Pp., 1937
Anbieter: Eryops Books, Stephenville, TX, USA
Softcovers; ex-library; minor shelfwear; o/w in very good condition.
Verlag: (Lincoln), 1937
Anbieter: Zentralantiquariat Leipzig GmbH, Leipzig, Deutschland
M. 2 Taf. 64 S. (Bull. of the Nebraska Geolog. Survey 2/11). Sprache: Englisch 0 gr.