Gupta, P P <br/><br/>
Vector calculus. 
by P P Gupta & G S Malik 
 - 3rd. ed. 
 - meerut:  Kedar nath ram nath publishers.,  1975. 
 - 172p.:  15cm. 
<br/><br/><label>Subjects--Index Terms: </label>Analysis. Mathematics 
<br/><br/><label>Dewey Class. No.: </label>515