APA (7th ed.) Citation

Ratnayake, Y. (1999). Hand Book of drug abuse information 1994-1998. National Dangerous Drugs Control Board, Rajagiriya.

Chicago Style (17th ed.) Citation

Ratnayake, Y. Hand Book of Drug Abuse Information 1994-1998. Control Board, Rajagiriya: National Dangerous Drugs Control Board, Rajagiriya, 1999.

MLA (9th ed.) Citation

Ratnayake, Y. Hand Book of Drug Abuse Information 1994-1998. National Dangerous Drugs Control Board, Rajagiriya, 1999.

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