ISBN 9781494235154 books & textbook
Evaluation of Explosion-resistant Seals, Stoppings, and Overcast for Ventilation Control in Underground Coal Mining
Weiss, Eric S. Cashdollar, Kenneth L Sapko, Michael J. National Institute for Occupational Safety and Health
CreateSpace Independent Publishing Platform /2002-12-31 Paperback / 54 Pages
isbn-10: 1494235153 / isbn-13: 9781494235154