APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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