Ascher, Marcia <br/><br/>
Mathematics of the Incas : code of the quipu 
Marcia Ascher, Robert Ascher 
 - Mineola, NY  Dover Publications  1997 
 - vii, 166 : ill. ; 24 cm 
<br/><br/> Includes bibliographical references 
<br/><br/><label>ISBN: </label>9780486295541 
<br/><br/><label>ISSN: </label>96047494 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Incas - Mathematics<br/>Indians of South America - Andes Region - Mathematics<br/>Quipu
<br/><br/><label>Dewey Class. No.: </label>302.222 ASC