APA (7th ed.) Citation

Lewis, D. J. (1963). Scientific principles of psychology. Prentice-Hall.

Chicago Style (17th ed.) Citation

Lewis, Donald Joseph. Scientific Principles of Psychology. Englewood Cliffs, N.J.: Prentice-Hall, 1963.

MLA (8th ed.) Citation

Lewis, Donald Joseph. Scientific Principles of Psychology. Prentice-Hall, 1963.

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