Johnson, D. M. (1948). Essentials of psychology: An introductory textbook. McGraw-Hill Book Co.
芝加哥风格引文Johnson, Donald McEwen. Essentials of Psychology: An Introductory Textbook. New York: McGraw-Hill Book Co, 1948.
MLA引文Johnson, Donald McEwen. Essentials of Psychology: An Introductory Textbook. McGraw-Hill Book Co, 1948.
警告：这些引文格式不一定是100％准确.