APA (7th ed.) Citation

Haythornthwaite. (1991). Unvincible generals: Gustavus Adolphus, Marborough.. Firebird Books.

Chicago Style (17th ed.) Citation

Haythornthwaite. Unvincible Generals: Gustavus Adolphus, Marborough.. Poole, Dorset, UK: Firebird Books, 1991.

MLA (8th ed.) Citation

Haythornthwaite. Unvincible Generals: Gustavus Adolphus, Marborough.. Firebird Books, 1991.

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