Mapoteca Geologica Americana: A Catalogue Of Geological Maps Of America (north And South) 1752-1881, In Geographic And Chronologic Order, Issue 7 (Paperback)
Mapoteca Geologica Americana: A Catalogue of Geological Maps of America (North and South) 1752-1881, in Geographic and Chronologic Order, Issue 7 (Hardcover)
Geology of North America: With Two Reports on the Prairies of Arkansas and Texas, the Rocky Mountains of New Mexico, and the Sierra Nevada of CA (Paperback)