Fluids in subsurface environments :  a symposium / 
edited by Addison Young and John E. Galley 
 - Tulsa, Okla  :  American Association of Petroleum Geologists,  1965 
 - viii, 414 p.  :  ill.  ;  25 cm. 
 - Memoir (American Association of Petroleum Geologists) ;  4 .
<br/><br/> 'Semicentennial commemorative volume.'  'Papers ... comprising the Transactions of the 6th Annual Meeting of the Southwestern Federation of Geological Societies, at Midland, Texas, January 30, 31, and February 1, 1964.  This meeting was also a Southwestern Regional Meeting of the American Association of Petroleum Geologists.' 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum--Geology--Congresses<br/>Gas, Natural--Geology--Congresses