Cita APA (7th ed.)

Guest, J., & Robinson, B. (2012). 1000 awesome facts: A children's first reference guide. Parragon.

Cita Chicago (17th ed.)

Guest, John, i Ben Robinson. 1000 Awesome Facts: A Children's First Reference Guide. UK: Parragon, 2012.

Cita MLA (8th ed.)

Guest, John, i Ben Robinson. 1000 Awesome Facts: A Children's First Reference Guide. Parragon, 2012.