World Health Organization. (1996). Cancer pain relief: With a guide to opioid availability (2nd ed.). WHO.
Chicago-stil citatWorld Health Organization. Cancer Pain Relief: With a Guide to Opioid Availability. 2nd ed. Geneva: WHO, 1996.
MLA-referensWorld Health Organization. Cancer Pain Relief: With a Guide to Opioid Availability. 2nd ed. WHO, 1996.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.