Breeding and seed production of chinese cabbage in the tropics and sub-tropics / 
R. T. Opena, C. G. Kuo and J. Y. Yoon. 
 - Shanhua, Taiwan :  AVRDC,  c1988. 
 - vi, 92 pages :  illustrations ;  25. 
<br/><br/> Technical Bulletin No.17. 
<br/><br/><label>ISBN: </label>9290580321