Kajima,Takashi. <br/><br/>
Advance abacus :  Japanese theory and practice / 
Takashi kojima. 
 - Japan :  Charles E.Tuttle,  c 1963. 
 - 159 p. ;  18 cm. 
<br/><br/>310  310 
<br/><br/><label>Subjects--Topical Terms: </label><br/>General topics.
<br/><br/><label>Dewey Class. No.: </label>511.028 / K829a