APA (7th ed.) Citation

Blumenfeld, E., & Alpern, L. (1986). The smile connection: How to use humor in dealing with people. Prentice-Hall.

Chicago Style (17th ed.) Citation

Blumenfeld, Esther, and Lynne Alpern. The Smile Connection: How to Use Humor in Dealing with People. Englewood Cliffs, N.J.: Prentice-Hall, 1986.

MLA (9th ed.) Citation

Blumenfeld, Esther, and Lynne Alpern. The Smile Connection: How to Use Humor in Dealing with People. Prentice-Hall, 1986.