Ruygers, Geert. <br/><br/>
Socialisme, vroeger en nu, 
door Geert Ruygers ... 
 - Haarlem,  H.D. Tjeenk Willink & zoon n.v.,  1945. 
 - 125 p.  19 cm. 
<br/><br/><label>LCCN: </label>af 47000095  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Socialism--Netherlands.
<br/><br/><label>LC Class. No.: </label>HX307  / .R8