1889 1975, Sauer Carl Ortwin books & textbook
The Geography of the Ozark Highland of Missouri
Hardpress Publishing /2013-01-28 Paperback / 300 Pages
isbn-10: 1313998966 / isbn-13: 9781313998963
Starved Rock State Park and Its Environs; Volume Bulletin no. 6
Sauer, Carl Ortwin 1889-1975 Cady, Gilbert H. (Gilbert Haven) b. 188
Wentworth Press /2016-08-29 Paperback / 172 Pages
isbn-10: 1373268476 / isbn-13: 9781373268471