Verlag: USGS Bulletins 389 (Lee; 141 pp., 12 pls), 390 (Calvert, 82 pp.+2maps, 391 (Kindle, 60 pp., 10 pls).
Anbieter: Eryops Books, Stephenville, TX, USA
Hardcover. Zustand: Very Good. ORIGINAL 1909 PUBLICATION. Three USGS Bulletins, ex-library, bound together in blue cloth; # 389 w/ light stains on fore-edge of pages and plates; o/w all in very good condition.