Thomas G.B.. Hass, Joel  Heil,Christopher Weir, Maurice D. <br/><br/>
Thomas Calculus 

 - 9 
 - New Delhi  Pearson  2019 
 - p.1048 
<br/><br/><label>ISBN: </label>978818501552 
<br/><br/><label>Subjects--Topical Terms: </label> Derivatives  Parrial Derivatives  Integrals and Vector Fields 
<br/><br/><label>Dewey Class. No.: </label>517 T457C