Roper, L. E. L. (1981). Law enforcement selection requirements: A national analysis. Univ. Microfilms Internat.
Chicago Style (17th ed.) CitationRoper, Leah E. L. Law Enforcement Selection Requirements: A National Analysis. Ann Arbor, Mich: Univ. Microfilms Internat, 1981.
MLA (8th ed.) CitationRoper, Leah E. L. Law Enforcement Selection Requirements: A National Analysis. Univ. Microfilms Internat, 1981.
Warning: These citations may not always be 100% accurate.