* {{cite book | title=Encyclopedia of sex and gender | publisher=Thomson Gale | publication-place=Detroit | date=2007 | isbn=978-0-02-865960-2 | ref={{sfnref|Thomson Gale|2007}}}}
<ref name="u036">{{cite book | title=Encyclopedia of sex and gender | publisher=Thomson Gale | publication-place=Detroit | date=2007 | isbn=978-0-02-865960-2 | page=}}</ref>