http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Laboratory and field characterization of immediate floor strata in Illinois basin coal mines
Illinois Mine Subsidence Research Program
Yoginer P. Chugh, Anil Atri, & James Dougherty.
"Reprinted from: Khair, A. Wahab (editor), Rock mechanics as a guide for efficient utilization of natural resources- Proceedings of the 30th U.S. Symposium, West Virginia, 19-22.06.1989."
Includes bibliographical references (page 54).