Yui-Chung, Ko,  1948- <br/><br/>
Labor movement in the North China, 1900-1937 / 
Yiu-Chung Ko 
 - Santa Barbara, Calif. :  University of California,  1981 
 - 217 p. ;  21 cm. 
<br/><br/>Thesis (Ph.D.)-University of California 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor and laboring classes--China<br/>Labor mobility--China