Bayens, Gerald J. Criminal justice research methods : theory and practice / Gerald J. Bayens, Cliff Roberson. - 2nd ed. - Boca Raton, FL : CRC Press, c2011. - xix, 280 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 9781439836965 (pbk. : alk. paper) RM259.91 1439836965 (pbk. : alk. paper) Subjects--Topical Terms: Criminal justice, Administration of--Research--Methodology.