RT Journal Article SR Electronic T1 COOPERATIVE INVESTIGATION OF THE MISSISSIPPIAN FORMATIONS JF Science JO Science FD American Association for the Advancement of Science SP 706 OP 707 DO 10.1126/science.38.985.706 VO 38 IS 985 A1 Dewolf, F. W. YR 1913 UL http://science.sciencemag.org/content/38/985/706.abstract AB