APA (7th ed.) Citation

(1841). The post office annual directory and calendar for 1841 .. John S. Folds.

Chicago Style (17th ed.) Citation

The Post Office Annual Directory and Calendar for 1841 .. Dublin: John S. Folds, 1841.

MLA (9th ed.) Citation

The Post Office Annual Directory and Calendar for 1841 .. John S. Folds, 1841.

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