APA (7th ed.) Citation

(1836). Direct communication between Dublin and London via Portdynllaen in 12 hours. [publisher not identified].

Chicago Style (17th ed.) Citation

Direct Communication Between Dublin and London via Portdynllaen in 12 Hours. [London?]: [publisher not identified], 1836.

MLA (9th ed.) Citation

Direct Communication Between Dublin and London via Portdynllaen in 12 Hours. [publisher not identified], 1836.

Warning: These citations may not always be 100% accurate.