Lockhart, P. D. (1996). Denmark in the Thirty Years' War, 1618 - 1648: King Christian IV and the decline of the Oldenburg state. Susquehanna Univ. Press.
Chicago Style (17th ed.) CitationLockhart, Paul Douglas. Denmark in the Thirty Years' War, 1618 - 1648: King Christian IV and the Decline of the Oldenburg State. Selinsgrove [u.a.]: Susquehanna Univ. Press, 1996.
MLA (8th ed.) CitationLockhart, Paul Douglas. Denmark in the Thirty Years' War, 1618 - 1648: King Christian IV and the Decline of the Oldenburg State. Susquehanna Univ. Press, 1996.
Warning: These citations may not always be 100% accurate.