APA način citiranja (7. izdanje)

(1994). Letters from Lake Como: Explorations in technology and the human race / Romano Guardini ; with an introduction by Louis Dupré ; translated by Geoffrey W. Bromiley.

Čikaški stil citiranja (17. izdanje)

Letters from Lake Como: Explorations in Technology and the Human Race / Romano Guardini ; with an Introduction by Louis Dupré ; Translated by Geoffrey W. Bromiley. 1994.

MLA način citiranja (9. izdanje)

Letters from Lake Como: Explorations in Technology and the Human Race / Romano Guardini ; with an Introduction by Louis Dupré ; Translated by Geoffrey W. Bromiley. 1994.