Παραπομπή σε μορφή APA (7η εκδ.)

Halko, J. (1950). Religious census, District of Columbia: General summary. Washington Federation of Churches.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Halko, John. Religious Census, District of Columbia: General Summary. Washington, D.C.: Washington Federation of Churches, 1950.

Παραπομπή σε μορφή MLA (8th εκδ.)

Halko, John. Religious Census, District of Columbia: General Summary. Washington Federation of Churches, 1950.