Chemical Abstracts :  Key to the world's Chemical literature.  Vol. 77. Number 15 / 
A product of the Chemical Abstracts service ; Published biweekly by the American Chemical Society 
 - Washington,D.C  Amercan Chemical Society ,  1972 
 - 545 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hóa học<br/>Chemical Engineering and Technology
<br/><br/><label>Dewey Class. No.: </label>540  / CHE(77.15) 1972