APA (7th ed.) Citation

Ratnayake, Y. (2000). Hand book of drug abuse information 1996-1999. National Dangerous Drugs Control Board.

Chicago Style (17th ed.) Citation

Ratnayake, Y. Hand Book of Drug Abuse Information 1996-1999. Rajagiriya: National Dangerous Drugs Control Board, 2000.

MLA (9th ed.) Citation

Ratnayake, Y. Hand Book of Drug Abuse Information 1996-1999. National Dangerous Drugs Control Board, 2000.

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