Johnson, David E. Well logging for the nontechnical person / by David E. Johnson and Kathryne E. Pile - Tulsa, Oklahoma : Penn Well, 1988 - 198 p. : ill. ; 24 cm. LCCN: 88-5851 Subjects--Topical Terms: Geophysical well loggingPetroleum--GeologyGas, Natural--GeologyPropecting