Author: Holbrook, Elmer Allen ; Ageton, Richard V. ; & Tufft, Harry Earle
Title: Timbering of Metal Mines
Description: Washington, Government Printing Office, 1923. orig. wrappers. 22x14cm, vi,72,(21) pp.. 21pp photoplates. Minor rubbing. Rubberstamps to cover. VG.

Keywords: Mine Timbering, Mining, Mines, Engineering, , , , ,