00573nam a2200157Ia 4500 190328s9999||||xx |||||||||||||| ||und|| NITIL NITIL 21st 345.11 U58O Lewis, Elmer A (Comp.) United States Oil and leasing Act of 1920 with amendments and other laws relating to mineral lands Elmer A Lewis Washington Government Printing Office 1952 xi, 346p. Mining law-United States; Mineral lands-Law and legislation; Oil fields-Law and legislation BKS 36378 36378