GROHMANN , C. J. <br/><br/>
Principle and Practice of Statistics 

 - London,  George G. Harrap,  1968. 
 - 272p.: ill.; figure, graph, table.  Index.  23cm. 
<br/><br/><label>ISBN: </label>245 57269 4 
<br/><br/><label>Dewey Class. No.: </label>519. 5 GRO