APA (7th ed.) Citation

Adam Matthew Digital (Firm). (2020). DANUBE: Control of the River Danube. Adam Matthew Digital.

Chicago Style (17th ed.) Citation

Adam Matthew Digital (Firm). DANUBE: Control of the River Danube. Marlborough, Wiltshire: Adam Matthew Digital, 2020.

MLA (9th ed.) Citation

Adam Matthew Digital (Firm). DANUBE: Control of the River Danube. Adam Matthew Digital, 2020.

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