Brumfiel Gregory W <br/><br/>
Partially ordered rings and semi-algebraic geometry 
Brumfiel Gregory W 
 - London  Cambridge University Press         1979 
 - 280p.  cm. 
 - London mathematical society lecture note series; 37 .
<br/><br/> Appendix 268-273p. 
<br/><br/><label>Standard No.: </label>19877 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B239MR, L9-;2