APA (7th ed.) Citation

Johnson, D. M. (1948). Essentials of psychology: An introduction textbook. McGraw-Hill.

Chicago Style (17th ed.) Citation

Johnson, Donald M. Essentials of Psychology: An Introduction Textbook. McGraw-Hill, 1948.

MLA (8th ed.) Citation

Johnson, Donald M. Essentials of Psychology: An Introduction Textbook. McGraw-Hill, 1948.

Warning: These citations may not always be 100% accurate.