Edité par Econ Geol, 1952
Vendeur : Larry W Price Books, Portland, OR, Etats-Unis
Magazine / Périodique
Pamphlet. Etat : Very Good. Vol 47, No 1, pp. 13-23, Illus, Extracted from orig vol, thus begins with title page, trimmed & stapled pamphlet, last page in facsimile, else VG.