Geological Survey (U.S.) 100 Fox, J. E. 1943- 20 Roehler, Henry W. 14 O'Sullivan, Robert Brett, 1923- 9 Calzia, J. P. 5 Geological Survey of Pakistan 5 Johnson, Edward A. 1940- 5 Colorado Geological Survey 4 Molenaar, C. M. 4 ScienceDirect (Online service) 4 Arkansas Geological Commission 3 Condon, Steven M. 3 Hettinger, Robert D. 3 United States. Bureau of Indian Affairs 3 Ambrose, Carol Morgans Tremain 2 American Institute of Architects 2 Arndt, Harold H. 2 Baird, J. K. 2 Cannon, Susan H. 2 Cousins, M. F., 2 Dyman, T. S. 2 Ellis, Margaret S. 1950- 2 Geological Survey (U.S.), 2 Hallberg, Laura L., 2 Hardie, John K. 2 Hayes, Timothy Scott 2 Huffman, A. C. 2 Johnson, Ronald C. 1950- 2 Johnson, Samuel Y. 2 Kelso, Bruce S. 2 Khan, Intizar H. 2 Kirschbaum, Mark A. 2 Missouri. Division of Geology and Land Survey 2 Nichols, K. M. 1946- 2 Ogle, Kathy Muller, 2 Ramsey, Charles George, 1884-1963 2 Roberts, Stephen B. 2 Sleeper, Harold Reeve, 1893-1960 2 Tysdal, Russell G. 2 Utah Geological and Mineral Survey 2 Affolter, Ronald H. 1 American National Standards Institute. Committee Y14, Standards for Engineering Drawing and Related Documentation Practices. Subcommittee 7, Gears and Splines 1 American Society for Engineering Education 1 American Society of Mechanical Engineers 1 Anderson, Richard K. 1951- 1 Bakhoum, Nagy R., 1 Bawiec, W. J. 1 Bisharat, Keith A. 1 Brownfield, M. E. 1 Campbell, Bruce G. 1 Cheyenne Board of Public Utilities (Cheyenne, Wyo.) 1 Cheyenne Board of Public Utilities (Cheyenne, Wyo.), 1 Chisholm, Wayne A. 1 Cobban, William A., 1916-2015 1 Collins, Donley S. 1 Colorado. Department of Transportation 1 Crone, Anthony J. 1 Detterman, Robert L. 1 Dorn, Dennis 1 Edwards, Gerald B. 1 Franczyk, Karen J. 1 Gettings, M. E. 1 Giardino, Marco Joseph, 1950-2018 1 Gohn, Gregory S. 1 Handberg, Ejner 1 Harding, Samuel T. 1 Henderson, Susan M. 1 Herd, Darrell G. 1 Hester, T. C. 1 Heusser, Linda E. 1 Hiett, John K. 1 Historic American Buildings Survey/Historic American Engineering Record 1 Hoke, John Ray, 1950- 1 Honey, James G. 1 Houser, Brenda 1 Huth, Mark W. 1 Jedrzejewski, Franck, 1 Jefferis, Alan 1 Johnson, Tom, 1939- 1 Kentucky Geological Survey 1 Krizanich, Gary W. 1 Libby-French, Jan 1 Linde, Richard M., 1 Lord, Peter, 1929- 1 Luedke, Robert G. 1 Lupe, Robert 1 Luzietti, Eugene A. 1 Madsen, David A. 1 McMasters, Catherine R. 1 Miller, John J. 1 Miller, John W. 1928- 1 Mouzon, Stephen A. 1 Mugel, Douglas N. 1 Muller, Edward John, 1916- 1 National Cancer Institute (U.S.) 1 Nummedal, Dag 1 Oldale, Robert N. 1 Palmer, James R. 1 Parker, W. Oren 1 Pearson, G. 1911- 1