Frost. (2000). The northern wars: War, state, and society in northeastern Europe, 1558-1721. Longman.
Chicago Style (17th ed.) CitationFrost. The Northern Wars: War, State, and Society in Northeastern Europe, 1558-1721. Harlow, England: Longman, 2000.
MLA (8th ed.) CitationFrost. The Northern Wars: War, State, and Society in Northeastern Europe, 1558-1721. Longman, 2000.
Warning: These citations may not always be 100% accurate.