Author/Creator
- Ryder, Robert T.10
- Booth, Derek B.9
- Clark, Allan K.9
- Corporación Venezolana de Guayana. Técnica Minera9
- Du Bray, E. A.9
- Graymer, R. W. (Russell Walter)9
- Head, James W.9
- Maldonado, Florian9
- Ryan, Darlene A.9
- Thompson, Ren A.9
- Cossette, P. M. (Pamela M.)8
- Hudson, Mark R.8
- Matti, Jonathan C.8
- Orndorff, Randall C.8
- TTK Healthcare Limited. Publications Division8
- United States. Bureau of Land Management8
- United States. Department of Defense8
- University of London. School of Oriental and African Studies8
- Williams, Van S.8
- California Geological Survey7