Cita APA (7a ed.)

Guynes, R., & Coffey, O. (1988). Employee drug-testing policies in prison systems. U.S. Dep. of Justice, National Inst. of Justice.

Cita Chicago Style (17a ed.)

Guynes, Randall, y Osa Coffey. Employee Drug-testing Policies in Prison Systems. Washington, DC: U.S. Dep. of Justice, National Inst. of Justice, 1988.

Cita MLA (9a ed.)

Guynes, Randall, y Osa Coffey. Employee Drug-testing Policies in Prison Systems. U.S. Dep. of Justice, National Inst. of Justice, 1988.