APA (7th ed.) Citation

Berkis, A. V. (1969). The history of the Duchy of Courland: (1561 - 1795) (1. ed.). Harrod.

Chicago Style (17th ed.) Citation

Berkis, Alexander V. The History of the Duchy of Courland: (1561 - 1795). 1. ed. Towson, Md: Harrod, 1969.

MLA (9th ed.) Citation

Berkis, Alexander V. The History of the Duchy of Courland: (1561 - 1795). 1. ed. Harrod, 1969.