Tiratsoo, E. N. <br/><br/>
Natural gas :  a study / 
by E. N. Tiratsoo ; with an introduction by Sir Harold Hartley 
 - London :  Scientific Press,  1967 
 - xvi, 386 p. :  ill. ;  25 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0872015785 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gas, Natural