APA (7th ed.) Citation

Zunyou Wu & Nicolas Clark. Treatment of opioid dependence: A call for papers. The World Health Organization.

Chicago Style (17th ed.) Citation

Zunyou Wu and Nicolas Clark. Treatment of Opioid Dependence: A Call for Papers. The World Health Organization.

MLA (9th ed.) Citation

Zunyou Wu and Nicolas Clark. Treatment of Opioid Dependence: A Call for Papers. The World Health Organization.

Warning: These citations may not always be 100% accurate.