The Rock River country of northern Illinois,
Rolfe, Deette, 1879-
The Rock River country of northern Illinois, by Deette Rolfe. - Urbana, Ill. [Springfield Jeffersons Printing & Stationery Co.] 1929. - [58], [1] p. incl. front. illus., maps. 20 cm.
At head of title: State of Illinois. Department of Registration and Education.
Bibliography: p. [59]
gs 29000068
Geology--Illinois--Rock River Valley.
QE105 / .A3 no.2
The Rock River country of northern Illinois, by Deette Rolfe. - Urbana, Ill. [Springfield Jeffersons Printing & Stationery Co.] 1929. - [58], [1] p. incl. front. illus., maps. 20 cm.
At head of title: State of Illinois. Department of Registration and Education.
Bibliography: p. [59]
gs 29000068
Geology--Illinois--Rock River Valley.
QE105 / .A3 no.2