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Author
- Geological Survey (U.S.)111
- Geological Survey of Canada13
- Berryhill, Henry L., Jr. (Henry Lee), 1921-201312
- Richmond, Gerald Martin, 1914-11
- Clarke, M. D.10
- Pierce, Kenneth Lee4
- Richard, S. H.4
- Veillette, J. J.4
- Armstrong, J. A.3
- Kaszycki, C. A.3
- Waldrop, Henry A.3
- Aylsworth, J. M.2
- Cooley, M. E. (Maurice E.)2
- Fulton, Robert J.2
- Harris, Kenneth L.2
- Stanton, M. P.2
- Vincent, J. S.2
- Armstrong, J. E. (John Edward), 1912-1
- DeLabio, R. N. W.1
- Dredge, L. A.1
