The gypsum and salt of Oklahoma - Snider, Luther C. (Luther Crocker), 1882- (Norman, Oklahoma City, The Harlow-Ratliff printing co., 1913)
"Extensive use has been made of the reports of G. P. Grimsley on the gypsum of Kansas (University geological survey of Kansas, vol. 5) and of Michigan (Michigan geological survey, vol. 9); of F. A. Wilder on the gypsum of Iowa (Iowa geological survey, vol. 12); of G. I. Adams and others on the gypsum of the United States (Bulletin United States geological survey no. 223); and by W. F. Jennison on the gypsum of the maritime provinces of Canada (Canada department of mines, Mines branch, no. 84)"
Keywords: Salt -- Oklahoma; Gypsum -- Oklahoma