Lennes, Nels Johann,  1874- [from old catalog] <br/><br/>
Learning arithmetic [grades] 3-[8]  

 - Chicago,  New York [etc.]  Laidlaw brothers  [1942] 
 - 6 v.  illus. (part col.) diagrs.  21 cm. 
<br/><br/><label>LCCN: </label>42015884  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--1901- [from old catalog]
<br/><br/><label>LC Class. No.: </label>QA 106  / L47 1942