Gough, Beverly E.. <br/><br/>
World environmental directory /  
edited by Beverly E. Gough. 
 - 4th ed /  
 - Maryland :   Business Publishers, Inc. ,   1972 
 - cxxvii,965p :  
<br/><br/><label>ISBN: </label>0-916742-04-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Life Science
<br/><br/><label>Dewey Class. No.: </label>G:55n1,N  / L9