Cita APA (7a ed.)

Beck, G., & Parke, H. (2013). Agenda 21 (Center Point Large Print edition.). Center Point Large Print.

Cita Chicago Style (17a ed.)

Beck, Glenn, y Harriet Parke. Agenda 21. Center Point Large Print edition. Thorndike, Maine: Center Point Large Print, 2013.

Cita MLA (8a ed.)

Beck, Glenn, y Harriet Parke. Agenda 21. Center Point Large Print edition. Center Point Large Print, 2013.

Precaución: Estas citas no son 100% exactas.