Feldman, R. S. (2021). Understanding psychology (Fifteenth edition.). McGraw-Hill Education.
芝加哥风格引文Feldman, Robert S. Understanding Psychology. Fifteenth edition. New York, NY: McGraw-Hill Education, 2021.
MLA引文Feldman, Robert S. Understanding Psychology. Fifteenth edition. McGraw-Hill Education, 2021.
警告：这些引文格式不一定是100％准确.