Sorrentino, Sheila A. 
Mosby's textbook for nursing assistants /   Textbook for nursing assistants  Sheila A. Sorrentino.   - 7th ed.   - St. Louis, Mo. :  Mosby Elsevier,  c2008.   - xxx, 848 p. :  ill. (chiefly col.) ;  29 cm. +  1 CD-ROM (4 3/4 in.)