USA. (19). Youth knowledge development report. U.S. Gov. Print. Off.
Cita Chicago Style (17a ed.)USA. Youth Knowledge Development Report. Washington, D.C: U.S. Gov. Print. Off, 19.
Cita MLA (9a ed.)USA. Youth Knowledge Development Report. U.S. Gov. Print. Off, 19.
Precaución: Estas citas no son 100% exactas.
