APA Style

Guide to clinical preventive services :an assessment of the effectiveness of 169 interventions : report of the U.S. Preventive Services Task Force.. (1989). Baltimore :: Williams & Wilkins,.

MLA Style

Guide to clinical preventive services :an assessment of the effectiveness of 169 interventions : report of the U.S. Preventive Services Task Force.. . Baltimore :: Williams & Wilkins,, 1989. Text.