a book about Mormon polygamy
... that a book about Mormon polygamy claims that polygamy was an early form of feminism?
... that <b id="mw_g"><a class="mw-redirect" href="./A_House_Full_of_Females:_Plural_Marriage_and_Women's_Rights_in_Early_Mormonism,_1835–1870" id="mw_w" rel="mw:WikiLink" title="A House Full of Females: Plural Marriage and Women's Rights in Early Mormonism, 1835–1870">a book about Mormon polygamy</a></b> claims that <a href="./Polygamy" id="mwAQA" rel="mw:WikiLink" title="Polygamy">polygamy</a> was an early form of feminism?