APA (7th ed.) Citation

Ratnayake, C. b. Y. (1995). Handbook of drug abuse information (1989-1993). National Dangerous Drugs Control Board.

Chicago Style (17th ed.) Citation

Ratnayake, Compiled by Y. Handbook of Drug Abuse Information (1989-1993). Rajagiriya: National Dangerous Drugs Control Board, 1995.

MLA (9th ed.) Citation

Ratnayake, Compiled by Y. Handbook of Drug Abuse Information (1989-1993). National Dangerous Drugs Control Board, 1995.