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Williams, E. L. and Howe, George F. and Matzko, George T. and White, Richard R. and Stark, William G. (1995) Fossil Wood of Big Bend National Park—Part IV: Wood Structure, Nodules, Paleosols, and Climate. Creation Research Society Quarterly, 31 (4): 3.

Williams, E. L. and Herdklotz, Richard J. and Mulfinger, George L. and Jonsonbaugh, R. D. and Pierce, D. L. (1976) Deposition of Calcium Carbonate in a Laboratory Situation. Creation Research Society Quarterly, 12 (4): 9.