Charles L Harper. (2010). Exploring social change: America and the world. Prentice-Hall.
Chicago Edition CitationCharles L Harper. Exploring Social Change: America and the World. New Jersey: Prentice-Hall, 2010.
MLA引文Charles L Harper. Exploring Social Change: America and the World. Prentice-Hall, 2010.
警告:这些引文格式不一定是100%准确.