Grorge, D., & Mallery, P. (2014). IBM statistics 21 step by step: A simple guide and reference (13th ed.). Pearson Education.
芝加哥风格引文Grorge, Darren, 与 Paul Mallery. IBM Statistics 21 Step by Step: A Simple Guide and Reference. 13th ed. U.S.A.: Pearson Education, 2014.
MLA引文Grorge, Darren, 与 Paul Mallery. IBM Statistics 21 Step by Step: A Simple Guide and Reference. 13th ed. Pearson Education, 2014.
警告：这些引文格式不一定是100％准确.