APA način citiranja (7. izdanje)

Wolf Tony. (2009). The book of the earth, many questions and many answers. Euro Books.

Čikaški stil citiranja (17. izdanje)

Wolf Tony. The Book of the Earth, Many Questions and Many Answers. Mumbai: Euro Books, 2009.

MLA način citiranja (9. izdanje)

Wolf Tony. The Book of the Earth, Many Questions and Many Answers. Euro Books, 2009.