Curzon, H. J. <br/><br/>
The art of arithmetic :  pupil's books nos. 1-6 / 
H. E. J. Curz on 
 - London:  Thomas Nelson & Sons ,  19? 
 - 6v. :  ill., diagrs. ;  19 cm. 
<br/><br/> Title pages stamped "specimen." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic
<br/><br/><label>Dewey Class. No.: </label>511