Παραπομπή σε μορφή APA (7η εκδ.)

Day, D., & Ellsberg, R. (1983). By little and by little: The selected writings of Dorothy Day. Knopf.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Day, Dorothy, και Robert Ellsberg. By Little and by Little: The Selected Writings of Dorothy Day. New York: Knopf, 1983.

Παραπομπή σε μορφή MLA (8th εκδ.)

Day, Dorothy, και Robert Ellsberg. By Little and by Little: The Selected Writings of Dorothy Day. Knopf, 1983.