Cita APA (7a ed.)

Steel, R. G. D., & Torrie, J. H. (1981). Principles and procedures of statistics: A biometrical approach (2nd. ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Steel, Robert G. D., y James H. Torrie. Principles and Procedures of Statistics: A Biometrical Approach. 2nd. ed. Tokyo: McGraw-Hill, 1981.

Cita MLA (8a ed.)

Steel, Robert G. D., y James H. Torrie. Principles and Procedures of Statistics: A Biometrical Approach. 2nd. ed. McGraw-Hill, 1981.