Pre- calculus for technical programs (part 1):  a student oriented teaching or self study text 
Zimmer, Rudolf A. 
 - London  BC publishing  company  1985 
 - 494p. 
<br/><br/><label>ISBN: </label>N/A 
<br/><br/><label>LC Class. No.: </label>QA 33I.3  / .Z56 1985