Gaya APA
Gestrude, .
(2009).
2009 Mosby's nursing Drug Refernce; 22nd ed.
.
St Louis:
Mosby Elsevier.
Gaya MLA
Gestrude, .
"2009 Mosby's nursing Drug Refernce; 22nd ed.".
St Louis:
Mosby Elsevier,
2009.
Textbook.