1. Geology and ground-water resources of the Cockfield Formation in western Tennessee Author/Creator: Parks, William Scott, author Publication/Creation: Memphis, Tennessee : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
2. Geologic and hydraulic characteristics of selected shaly geologic units in Oklahoma Author/Creator: Becker, Carol J., author Publication/Creation: Oklahoma City, Oklahoma : U.S. Geological Survey, 1997 Resource Type: Book Access & Availability: Loading