Gaya APA
Helms, R, A. (2006).
Textbook of Therapeutics: Drug and Disease Management (Eight Edition).
Philadelphia:
Lippincot Williams & Wilkins.
Gaya MLA
Helms, Richard, A..
"Textbook of Therapeutics: Drug and Disease Management".
Eight Edition
Philadelphia:
Lippincot Williams & Wilkins,
2006.
Koleksi Cetak.