Style de citation APA (7e éd.)

Perez, N. (2009). Its circle time! shapes. Children's Press.

Style de citation Chicago (17e éd.)

Perez, Nomar. Its Circle Time! Shapes. New York: Children's Press, 2009.

Style de citation MLA (8e éd.)

Perez, Nomar. Its Circle Time! Shapes. Children's Press, 2009.