Dyfyniad APA

University of Texas. Bureau of Economic Geology & Sellards, E. H. (1946). Texas mineral resources. The University.

Dyfyniad Arddull Chicago

University of Texas. Bureau of Economic Geology and Elias Howard Sellards. Texas Mineral Resources. Austin: The University, 1946.

Dyfyniad MLA

University of Texas. Bureau of Economic Geology and Elias Howard Sellards. Texas Mineral Resources. The University, 1946.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.