Elifson, K. W., Runyon, R. P., & Haber, A. (1990). Fundamentals of social statistics (Second edition.). McGraw-Hill.

Elifson, Kirk W., Richard P. Runyon, and Audrey Haber. Fundamentals of Social Statistics. Second edition. New York: McGraw-Hill, 1990.

Elifson, Kirk W., et al. Fundamentals of Social Statistics. Second edition. McGraw-Hill, 1990.