Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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