[Publications] - University of Texas, Bureau of Economic Geology.

Each issue has also a distinctive title.From 190 -1914 issues numbered consecutively; 1915-1916 issues numbered within the year; beginning in 1917, issues numbered as combination of year and no. (e.g., 1722 for 1917, no. 22)Vol. nos. used for this set are nos. assigned to the vols. as Bulletin of the University of Texas (190 -1916), University of Texas bulletin (1917-1937) and University of Texas Publications (1938-1966). Beginning with 1917 "the first two digits of the number show the year of issue, the last two the position in the yearly series".Mode of access: Internet