Functions and relations / 
Elizabeth Ainslie  ...[et al.]. 
 - Toronto :  Addison Wesley,  2002. 
 - 586 p. :  ill.; 
<br/><br/><label>ISBN: </label>0201726572 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Relations 
<br/><br/><label>LC Class. No.: </label>QA331.3   / .F86 2002