Παραπομπή σε μορφή APA (7η εκδ.)

Childs, G. W. (1868). The Public Ledger Building, Philadelphia: With an account of the proceedings connected with its opening, June 20, 1867. G.W. Childs.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Childs, George William. The Public Ledger Building, Philadelphia: With an Account of the Proceedings Connected with Its Opening, June 20, 1867. Philadelphia: G.W. Childs, 1868.

Παραπομπή σε μορφή MLA (8th εκδ.)

Childs, George William. The Public Ledger Building, Philadelphia: With an Account of the Proceedings Connected with Its Opening, June 20, 1867. G.W. Childs, 1868.