Sanders, Donald H..
Statistics: a fresh approach /
Donald H. Sanders, A. Franklin Murph, Robert J. Eng 
. - 2nd edition 
. - New York : McGraw-Hill Book Company,  1980 
. - xviii, 428 p.  tab., schem.  24 cm. 
<br/><label>  ISBN: </label>0-07-054667-3