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.