ClassicsProceedings of the third National Conservation Congress at Kansas City, Missouri, September 25, 26 and 27, 1911United States. National Conservation Congress
ClassicsProceedings [of the] fourth National Conservation Congress [at] Indianapolis, October 1-4, 1912United States. National Conservation Congress
ClassicsProceedings of the second National Conservation Congress at Saint Paul, September 5-8, 1910United States. National Conservation Congress
![Book cover of "Proceedings [of the] fourth National Conservation Congress [at] Indianapolis, October 1-4, 1912"](https://api.funbookshelf.com/storage/book/cover-pg/130289/pg69706.cover.medium.jpg?v=1746119633)
