APA (7th ed.) Citation

Dix, E. R. M. Humfrey Powell, the first Dublin printer.

Chicago Style (17th ed.) Citation

Dix, E. R. McC. Humfrey Powell, the First Dublin Printer.

MLA (9th ed.) Citation

Dix, E. R. McC. Humfrey Powell, the First Dublin Printer.

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