Cita APA (7a ed.)

Henson, R. E. (2004). The prevalence of workplace substance abuse testing and factors that influence policy in medium and large Illinois Municipal Police Agencies.

Cita Chicago Style (17a ed.)

Henson, Ronald E. The Prevalence of Workplace Substance Abuse Testing and Factors That Influence Policy in Medium and Large Illinois Municipal Police Agencies. 2004.

Cita MLA (8a ed.)

Henson, Ronald E. The Prevalence of Workplace Substance Abuse Testing and Factors That Influence Policy in Medium and Large Illinois Municipal Police Agencies. 2004.