APA (7th ed.) Citation
HARNOLL, R., & ET AL. (2000). THE ASSESSMENT OF DRUG PROBLEMS. WORLD HEALTH ORGANIZATION.
Chicago Style (17th ed.) Citation
HARNOLL, R., and ET AL. THE ASSESSMENT OF DRUG PROBLEMS. COPENHAGUE: WORLD HEALTH ORGANIZATION, 2000.
MLA (9th ed.) Citation
HARNOLL, R., and ET AL. THE ASSESSMENT OF DRUG PROBLEMS. WORLD HEALTH ORGANIZATION, 2000.
Warning: These citations may not always be 100% accurate.