Citazione Stile APA (7a Edizione)

Spielvogel, J. J. (2006). Journey across time: World history (6. print.). Glencoe, McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Spielvogel, Jackson J. Journey Across Time: World History. 6. print. New York, NY [u.a.]: Glencoe, McGraw-Hill, 2006.

Citatione MLA (9a ed.)

Spielvogel, Jackson J. Journey Across Time: World History. 6. print. Glencoe, McGraw-Hill, 2006.