Subject

Natural resources -- Congresses books

3 free books about natural resources -- congresses, free to read online. Chapter 1 of any book is free, no account needed.

Proceedings [of the] fourth National Conservation Congress [at] Indianapolis, October 1-4, 1912

United States. National Conservation Congress

Proceedings of the second National Conservation Congress at Saint Paul, September 5-8, 1910

United States. National Conservation Congress

Proceedings of the third National Conservation Congress at Kansas City, Missouri, September 25, 26 and 27, 1911

United States. National Conservation Congress