Edité par Econ Geol, 1984
Vendeur : Larry W Price Books, Portland, OR, Etats-Unis
Magazine / Périodique
Pamphlet. Etat : Very Good. Vol 79, pp. 338-353, Illus, 4to, Extracted from orig vol, thus begins with title page, trimmed & stapled pamphlet, else VG last page in facsimile, else VG.