APA

Steel R. G. D., Torrie J. H., . (1980). Principles and procedures of statistics. New York: McGraw-Hill.

Chicago

Steel Robert George Douglas, Torrie James H, . 1980. Principles and procedures of statistics. New York: McGraw-Hill.

Harvard

Steel R. G. D., Torrie J. H., . (1980). Principles and procedures of statistics. New York: McGraw-Hill.

MLA

Steel Robert George Douglas, Torrie James H, . Principles and procedures of statistics. New York: McGraw-Hill. 1980.