Howell, Spencer P. (Spencer Pritchard) books & textbook
TNT as a Blasting Explosive; Volume no.94
Munroe, Charles E. (Charles Edward) 184 Howell, Spencer P. (Spencer Pritchard)
Wentworth Press /2016-08-29 Paperback / 26 Pages
isbn-10: 1373220597 / isbn-13: 9781373220592
