APA (7th ed.) Citation

Gill, J. H. 1809: Thunder on the Danube ; Napoleon's defeat of the Habsburgs. Frontline Books.

Chicago Style (17th ed.) Citation

Gill, John H. 1809: Thunder on the Danube ; Napoleon's Defeat of the Habsburgs. London: Frontline Books.

MLA (9th ed.) Citation

Gill, John H. 1809: Thunder on the Danube ; Napoleon's Defeat of the Habsburgs. Frontline Books.

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