http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Transitions between childlessness and first birth
National Center for Health Statistics (U.S.)
1 online resource (26 unnumbered pages) : illustrations
Title from title screen (viewed on Aug. 2, 2012).
Includes bibliographical references (pages [17-18]).