Bush, Alan W. <br/><br/>
Perturbation methods for engineers and scientists 
Alan W. Bush 
 - Boca Raton, Fla.  CRC Press  1992 
 - 303 p. : ill. ; 24 cm. 
<br/><br/><label>ISBN: </label>084938608X 
<br/><br/><label>LCCN: </label>91-039626 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Perturbation (Mathematics)