Effect of human beings on
Man and Nature; Or, Physical Geography as Modified by Human Action
Author: Marsh George P. (George Perkins)
Release Date: 2011-11-09
Date added: 26 March 2019
Count views: 314
The Earth as Modified by Human Action
Author: Marsh George P. (George Perkins)
Release Date: 2004-07-01
Date added: 24 March 2019
Count views: 307
