http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Unmarried men's contraceptive use at recent sexual intercourse
National Center for Health Statistics (U.S.)
1 online resource (7 pages) : color illustrations
GPO Cataloging Record Distribution Program (CRDP).
Includes bibliographical references (pages 7-8).