Ross, Alf, 1899-  Ross, Alf, 1899- <br/><br/>
Directives and norms; 
[manuscript by Brian Loar]. 
 - London,  Routledge & K. Paul,  1968 
 - International library of philosophy and scientific method .
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>LCCN: </label>67028027 
<br/><br/><label>Nat. Bib. No.: </label>B68-02218 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Semantics (Philosophy)<br/>Logic.<br/>Law -- Philosophy.--Law -- Philosophy.
<br/><br/><label>LC Class. No.: </label>B840  / .R63 
<br/><br/><label>Dewey Class. No.: </label>149/.94