APA-referens (7:e uppl.)

Guardini, R. Aesthetic-theological thoughts on "The Windhover": Romano Guardini. Hopkins : a collection of critical essays.(1966).

Chicago-referens (17:e uppl.)

Guardini, Romano. "Aesthetic-theological Thoughts on "The Windhover": Romano Guardini." Hopkins : A Collection of Critical Essays.(1966) .

MLA-referens (8:e uppl.)

Guardini, Romano. "Aesthetic-theological Thoughts on "The Windhover": Romano Guardini." Hopkins : A Collection of Critical Essays.(1966), .