Παραπομπή σε μορφή APA (7η εκδ.)

(1855). The present situation and future prospects of American railroads. Printed by T.K. and P.G. Collins.

Παραπομπή σε μορφή Chicago (17η εκδ.)

The Present Situation and Future Prospects of American Railroads. Philadelphia: Printed by T.K. and P.G. Collins, 1855.

Παραπομπή σε μορφή MLA (8th εκδ.)

The Present Situation and Future Prospects of American Railroads. Printed by T.K. and P.G. Collins, 1855.