Romanowska, A. B.  <br/><br/>
R & E research and exposition in mathematics (Volume- 9) 
/ by A. B. Romanowska & J. D. H. Smith 
 - Berlin:  Heldermann-Verlag,  1985. 
 - 158p. 
 - Modal theory an algebraic approach to order, geometry, and convexity .
<br/><br/><label>Dewey Class. No.: </label>512  / ROM/R