Purdy, R. L. (1973). Factors in the conviction of law violators: The drinking driver. Univ. Microfilms.
Cita Chicago Style (17a ed.)Purdy, Ross L. Factors in the Conviction of Law Violators: The Drinking Driver. Ann Arbor, Mich: Univ. Microfilms, 1973.
Cita MLA (9a ed.)Purdy, Ross L. Factors in the Conviction of Law Violators: The Drinking Driver. Univ. Microfilms, 1973.
Precaución: Estas citas no son 100% exactas.