Cita APA (7a ed.)

Greenwood, P. W. (1993). Weed and seed, indeed: Improving coordination between enforcement and treatment efforts in controlling illegal drug use. Rand Drug Policy Research Center.

Cita Chicago Style (17a ed.)

Greenwood, Peter W. Weed and Seed, Indeed: Improving Coordination Between Enforcement and Treatment Efforts in Controlling Illegal Drug Use. [Santa Monica, Calif.]: Rand Drug Policy Research Center, 1993.

Cita MLA (9a ed.)

Greenwood, Peter W. Weed and Seed, Indeed: Improving Coordination Between Enforcement and Treatment Efforts in Controlling Illegal Drug Use. Rand Drug Policy Research Center, 1993.