APA (7th ed.) Citation

Haarr, G. H. (2013). The gathering storm: The Naval war in Northern Europe, September 1939-April 1940. Naval Institute Press.

Chicago Style (17th ed.) Citation

Haarr, Geirr H. The Gathering Storm: The Naval War in Northern Europe, September 1939-April 1940. Annapolis, Maryland: Naval Institute Press, 2013.

MLA (9th ed.) Citation

Haarr, Geirr H. The Gathering Storm: The Naval War in Northern Europe, September 1939-April 1940. Naval Institute Press, 2013.

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