Gray, Deborah <br/><br/>
Calculate with confidence / 
Deborah Gray ; contributor, Dorothy Thomas. 
 - St. Louis :  Mosby,  c1994. 
 - xii, 404 p. : ill. (part col.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nursing--Mathematics<br/>Pharmaceutical arithmetic