WENTWORTH G.A <br/><br/>
ARITMETICA ELEMENTAL 

 - 0 
 - U.S.A.  GINN ABD  COMPANY  199 
 - 964 pag  19 cm 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>CIENCIAS PURAS
<br/><br/><label>Dewey Class. No.: </label>513  / W46