According to the academic reference network, the "source" in the reference refers to the source of the document. If it is a periodical paper, its source includes the periodical name, publication year, issue number and page number of Zhang Wenxian Construction Society; If it is a book, the source of * * * includes the title and publication time. Such as the legal mechanism of a harmonious socialist society U] China Law, 2006,01.7-[2] Cui Yong studies the moral basis of a harmonious socialist society [D 1 Northeast Normal University