Dowling, Edward T..
Schaum's outline of theory and problems of mathematics for economists: including 1752 solved problems /
Edward T. Dowling 
. - New York : McGraw Hill Book Company,  1980 
. - 407 p.  ill., schem.  28 cm. 
 - (Schaum’s outline series )
<br/><label>  ISBN: </label>0-07-017760-0