American Society of Mechanical Engineers. Fuels Handling, Transportation, and Storage Technical Committee, Joint Power Generation Conference, & Mahr, D. (1987). Coal sampling: Fundamentals and new applications-belt conveyor systems : presented at the 1987 Joint Power Generation Conference, Miami, Florida, October 4-8, 1987. American Society of Mechanical Engineers.

American Society of Mechanical Engineers. Fuels Handling, Transportation, and Storage Technical Committee, Joint Power Generation Conference, and Daniel Mahr. Coal Sampling: Fundamentals and New Applications-belt Conveyor Systems : Presented at the 1987 Joint Power Generation Conference, Miami, Florida, October 4-8, 1987. New York, N.Y. (345 E. 47th St., New York 10017): American Society of Mechanical Engineers, 1987.

American Society of Mechanical Engineers. Fuels Handling, Transportation, and Storage Technical Committee, et al. Coal Sampling: Fundamentals and New Applications-belt Conveyor Systems : Presented at the 1987 Joint Power Generation Conference, Miami, Florida, October 4-8, 1987. American Society of Mechanical Engineers, 1987.