Thomas, J. (2018). My friends make me happy! Houghton Mifflin Harcourt.
Cita Chicago Style (17a ed.)Thomas, Jan. My Friends Make Me Happy! Boston ; New York: Houghton Mifflin Harcourt, 2018.
Cita MLA (8a ed.)Thomas, Jan. My Friends Make Me Happy! Houghton Mifflin Harcourt, 2018.
Precaución: Estas citas no son 100% exactas.