Hobson, G. D.  1910- <br/><br/>
Introduction to petroleum geology / 
by G. D. Hobson and E. N. Tiratsoo. 
 - 2nd ed. 
 - Houston, Tex. :  Gulf Publishing Co.,  1981. 
 - viii, 352 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0901360120 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum--Geology.