(1931). Tests and challenges in sociology (for use with Ross's Principles of sociology, revised edition). The Century co.
芝加哥风格引文Tests and Challenges in Sociology (for Use with Ross's Principles of Sociology, Revised Edition). New York: The Century co, 1931.
MLA引文Tests and Challenges in Sociology (for Use with Ross's Principles of Sociology, Revised Edition). The Century co, 1931.
警告：这些引文格式不一定是100％准确.