Warwick, D. P., & Osherson, S. D. (1973). Comparative research methods. Prentice-Hall.
芝加哥风格引文Warwick, Donald P., 与 Samuel D. Osherson. Comparative Research Methods. Englewood Cliffs, N.J.: Prentice-Hall, 1973.
MLA引文Warwick, Donald P., 与 Samuel D. Osherson. Comparative Research Methods. Prentice-Hall, 1973.
警告：这些引文格式不一定是100％准确.