Παραπομπή σε μορφή APA (7η εκδ.)

Perry, E. L. (1949). A survey of Italian work in the vicinity of Easton, Pa. Board of National Missions, Presbyterian Church.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Perry, Everett L. A Survey of Italian Work in the Vicinity of Easton, Pa. New York: Board of National Missions, Presbyterian Church, 1949.

Παραπομπή σε μορφή MLA (8th εκδ.)

Perry, Everett L. A Survey of Italian Work in the Vicinity of Easton, Pa. Board of National Missions, Presbyterian Church, 1949.