APA (7th ed.) Citation

HARPER, R. S. Introductory psychology. Allyn And Bacon, Inc.

Chicago Style (17th ed.) Citation

HARPER, Robert S. Introductory Psychology. Allyn And Bacon, Inc.

MLA (8th ed.) Citation

HARPER, Robert S. Introductory Psychology. Allyn And Bacon, Inc.

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