Gaya APA
Wittink, H, M., Carr, D, B. (2008).
Pain Management Evidence, Outcomes, and Quality Of Life .
philadelphia, USA:
Sauders, elsevier.
Gaya MLA
Wittink, Harriet, M.., Carr, Daniel, B..
"Pain Management Evidence, Outcomes, and Quality Of Life".
philadelphia, USA:
Sauders, elsevier,
2008.
Text.