Langley, Russell <br/><br/>
Practical statistics simply explained /  
Russell Langley. 
 - 1a ed. 
 - New York :   Dover Publications,   1971 
 - 399 p. :  ìl. ;  22 cm. 
 - Dover science books .
<br/><br/><label>ISBN: </label>0486227294 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estadistica Matematica<br/>Probabilidad--Problemas, ejercicios, etc.
<br/><br/><label>LC Class. No.: </label>QA276.2  / L35 1971