Lake, Rosalind <br/><br/>
Elementary Differential Equations 
/ by Rosalind Lake 
 - New York:  Larsen & Keller,  2019. 
 - 228p. 
<br/><br/><label>ISBN: </label>9781641721219 
<br/><br/><label>Dewey Class. No.: </label>515.35  / LAK/E