Brown, L. K., & Brown, M. T. (1998). How to be a friend: A guide to making friends and keeping them. Little, Brown.
Cita Chicago Style (17a ed.)Brown, Laurene Krasny, y Marc Tolon Brown. How to Be a Friend: A Guide to Making Friends and Keeping Them. Boston: Little, Brown, 1998.
Cita MLA (8a ed.)Brown, Laurene Krasny, y Marc Tolon Brown. How to Be a Friend: A Guide to Making Friends and Keeping Them. Little, Brown, 1998.
Precaución: Estas citas no son 100% exactas.