APA (7th ed.) Citation

(1971). Magnetic anomaly map of Northern Ireland ([Repr.].). Ordnance Survey.

Chicago Style (17th ed.) Citation

Magnetic Anomaly Map of Northern Ireland. [Repr.]. Belfast u.a: Ordnance Survey, 1971.

MLA (9th ed.) Citation

Magnetic Anomaly Map of Northern Ireland. [Repr.]. Ordnance Survey, 1971.

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