Earth as modified by human action
Marsh George P
Earth as modified by human action - New York Scribner Armstrong U S A 1874 - xxi, 656p. cm. - American environmental studies .
Bib pix-xvii
General Book
Human Geography
U47, A
Earth as modified by human action - New York Scribner Armstrong U S A 1874 - xxi, 656p. cm. - American environmental studies .
Bib pix-xvii
General Book
Human Geography
U47, A
