Gaya APA
SULLIVAN, M, D., HOWE, C, Q. (2013).
Opioid Therapy For Chronic Pain In The United States .
Washington:
IASP.
Gaya MLA
SULLIVAN, Mark, D.., HOWE, Catherine, Q..
"Opioid Therapy For Chronic Pain In The United States".
Washington:
IASP,
2013.
Artikel.