Publicado por US Geol Survey, 1943
Librería: Larry W Price Books, Portland, OR, Estados Unidos de America
Original o primera edición
Paperback. Condición: Very Good. 1st Edition. Prof Paper 202, 81 pp.+ 34 Illus Plts include 5 Color FoldMaps in pocket. Orig Grey Paperback, 4to, chipped spine repaired, bit of edgecurl else VG, 1st ed.