APA

Baltz E. H., Myers D. A., . (1984). Porvenir Formation (new name), and other revisions of nomenclature of Mississippian, Pennsylvanian, and Lower Permian Rocks, Southeastern Sangre de Cristo Mountains, New Mexico. Washington: United States Government Printing Office.

Chicago

Baltz Elmer Harold, Myers Donald A, . 1984. Porvenir Formation (new name), and other revisions of nomenclature of Mississippian, Pennsylvanian, and Lower Permian Rocks, Southeastern Sangre de Cristo Mountains, New Mexico. Washington: United States Government Printing Office.

Harvard

Baltz E. H., Myers D. A., . (1984). Porvenir Formation (new name), and other revisions of nomenclature of Mississippian, Pennsylvanian, and Lower Permian Rocks, Southeastern Sangre de Cristo Mountains, New Mexico. Washington: United States Government Printing Office.

MLA

Baltz Elmer Harold, Myers Donald A, . Porvenir Formation (new name), and other revisions of nomenclature of Mississippian, Pennsylvanian, and Lower Permian Rocks, Southeastern Sangre de Cristo Mountains, New Mexico. Washington: United States Government Printing Office. 1984.