The Differential equations problem solver / 
staff of Research and Education Association ; M. Fogiel, director. 
 - New York :  Research and Education Association,  c1978. 
 - xiii, 1390 p. 
<br/><br/><label>ISBN: </label>0878915133 
<br/><br/><label>LCCN: </label>90034023     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations--Problems, exercises, etc.