Newton, Issac <br/><br/>
Principia :  mathematical principles of natural phiosophy. 
Issac Newton 
 - Berkeley  University of California  1999 
 - xvii,966p. 
<br/><br/><label>Subjects--Index Terms: </label>Newton, Issac- Principia Mechanics-Early works Celestial mehanics 
<br/><br/><label>Universal Decimal Class. No.: </label>51-72  / NEW