Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Heiken, G., Funiciello, R., & De Rita, D. (2005). The seven hills of Rome: A geological tour of the eternal city. Princeton Univ. Press.

Chicago Citation Edition Citation

Heiken, Grant, R. Funiciello, und Donatella De Rita. The Seven Hills of Rome: A Geological Tour of the Eternal City. Princeton, NJ: Princeton Univ. Press, 2005.

MLA Citation Edition Citation

Heiken, Grant, et al. The Seven Hills of Rome: A Geological Tour of the Eternal City. Princeton Univ. Press, 2005.