Ballington, Don A. <br/><br/>
Pharmacy calculations / 
Don A. Ballington, Tova Wiegand Green. 
 - 3rd  ed. 
 - New Delhi :  CBS,  2007. 
 - x, 262  p. 
<br/><br/><label>ISBN: </label>8123915401 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pharmaceutical arithmetic.