APA način citiranja (7. izdanje)

Ahern, C. (2009). The book of tomorrow. Harper Collins.

Čikaški stil citiranja (17. izdanje)

Ahern, Cecelia. The Book of Tomorrow. London: Harper Collins, 2009.

MLA način citiranja (9. izdanje)

Ahern, Cecelia. The Book of Tomorrow. Harper Collins, 2009.