Johnson, R. R. (1992). Elementary statistics (6th ed.). PWS-Kent Pub. Co.
芝加哥风格引文Johnson, Robert Russell. Elementary Statistics. 6th ed. Boston: PWS-Kent Pub. Co, 1992.
MLA引文Johnson, Robert Russell. Elementary Statistics. 6th ed. PWS-Kent Pub. Co, 1992.
警告：这些引文格式不一定是100％准确.