NICKLEN, BRIAN. "MIDDLE GUADALUPIAN (PERMIAN) BENTONITE BEDS, MANZANITA MEMBER, CHERRY CANYON FORMATION, WEST TEXAS: STRATIGRAPHIC AND TECTONOMAGMATIC APPLICATIONS." Master's thesis, University of Cincinnati, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1060891090Chicago Manual of Style (17th edition)