Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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