Cita APA (7a ed.)

Peterson, C. (2020). Earth Day and the environmental movement: Standing up for Earth. Twenty-First Century Books.

Cita Chicago Style (17a ed.)

Peterson, Christy. Earth Day and the Environmental Movement: Standing Up for Earth. Minneapolis: Twenty-First Century Books, 2020.

Cita MLA (8a ed.)

Peterson, Christy. Earth Day and the Environmental Movement: Standing Up for Earth. Twenty-First Century Books, 2020.

Precaución: Estas citas no son 100% exactas.