APA

Wedgwood C. V., . (1961). The Thirty Years War. New York: Anchor Books.

Chicago

Wedgwood C V, . 1961. The Thirty Years War. New York: Anchor Books.

Harvard

Wedgwood C. V., . (1961). The Thirty Years War. New York: Anchor Books.

MLA

Wedgwood C V, . The Thirty Years War. New York: Anchor Books. 1961.