MARX-ENGEL cyclopedia. 

 - New York     Schocken Books       1985 
<br/><br/><label>Standard No.: </label>35971 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>W691y7M18k, M5.1-.3  RR