http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a sound discussion of the physical and emotional aspects of sex addressed to all adults who have any responsibility for the sex education of children or youth
by Marion O. Lerrigo, Ph. D. and Helen Southard, M.D. ; in consultation with Milton J.E. Senn, M.D.