Gaya APA

BLUMENFELD, E., Alpern, L. (1986). The Smile Connection : How to Use Humor in Dealing with People (First Published). New Jersey: Prentice-Hall, Inc..

Gaya MLA

BLUMENFELD, Esther., Alpern, Lynne. "The Smile Connection : How to Use Humor in Dealing with People". First Published New Jersey: Prentice-Hall, Inc., 1986. Text.