Author: R (John Everts)

Description

ikMkR (John Everts). Geology and mineral resources o the Carbonda].e quadran1e. Urbana, l92. Se IllINOIS, State ot. Department of Regi.tration and !ducation. Divisii or the State Geologic— al Su.rveX. LBulletins.J 48.

Card ID: 307