O'LEARY, D. A. (2021). Computing essentials: Making IT work for you introductory 2021. McGraw-Hill.
芝加哥风格引文O'LEARY, Daniel A. Computing Essentials: Making IT Work for You Introductory 2021. McGraw-Hill, 2021.
MLA引文O'LEARY, Daniel A. Computing Essentials: Making IT Work for You Introductory 2021. McGraw-Hill, 2021.
警告：这些引文格式不一定是100％准确.