APA استشهاد

Steel, R., & Torrie, J. Principles and procedures of statistics. Mc Grow Hill.

استشهاد بنمط شيكاغو

Steel, Robert, و James Torrie. Principles and Procedures of Statistics. New York: Mc Grow Hill.

MLA استشهاد

Steel, Robert, و James Torrie. Principles and Procedures of Statistics. Mc Grow Hill.