Van Brummelen, Glen. <br/><br/>
Heavenly mathematics:  the forgotten art of spherical trigonometry/ 
Glen Van Brummelen. 
 - xvi, 192 pages, 8 unnumbered pages of plates:  illustrations (some color), maps;  24 cm 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780691175997 0691175993 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spherical trigonometry<br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>510.9  / V217h