Krog, Robert B. books & textbook
Guidelines for the Prediction and Control of Methane Emissions on Longwalls
Schatzel, Dr. Steven J. Karacan, Dr. C. Ozgen Krog, Robert B. Esterhuizen, Dr. Gabriel S. Goodman, Dr. Gerrit V.R. Centers for Disease Control and Prevention, Department of Health and Human Services National Institute of Occupational Safety and Health
CreateSpace Independent Publishing Platform /2008-03-30 Paperback / 92 Pages
isbn-10: 1492998753 / isbn-13: 9781492998754
