Gaya APA

Haythornwaite, P, J. (1991). Invincible generals : Gustavus Adolphus, Marlborough Frederick the great, George Washington, Wellington / Philip J. Haythornthwaite . Poole: Firebird Books.

Gaya MLA

Haythornwaite, Philip, J.. "Invincible generals : Gustavus Adolphus, Marlborough Frederick the great, George Washington, Wellington / Philip J. Haythornthwaite". Poole: Firebird Books, 1991. Textbook.