Cita APA (7a ed.)

Shapiro, L. A., & Holmes, J. (2008). Let's be friends: A workbook to help kids learn social skills & make great friends. Instant Help Books.

Cita Chicago Style (17a ed.)

Shapiro, Lawrence A., y Julia Holmes. Let's Be Friends: A Workbook to Help Kids Learn Social Skills & Make Great Friends. Oakland, California: Instant Help Books, 2008.

Cita MLA (9a ed.)

Shapiro, Lawrence A., y Julia Holmes. Let's Be Friends: A Workbook to Help Kids Learn Social Skills & Make Great Friends. Instant Help Books, 2008.