Vasilescu, Calin Adrian <br/><br/>
Explotarea Rationala A Gazelor Naturale (Rational Exploitation of Natural gases)   
by Calin Adrian Vasilescu..[et. al.] 
 -  Editura Academiei Republicii Populare Romine  1963 
 - 365p. incl. bibl. 
<br/><br/><label>Dewey Class. No.: </label>622.159  / N63