APA (7th ed.) Citation

Roberts, M. (1953). Gustavus Adolphus: A history of Sweden, 1611-1632. Longmans, Green.

Chicago Style (17th ed.) Citation

Roberts, Michael. Gustavus Adolphus: A History of Sweden, 1611-1632. London, New York: Longmans, Green, 1953.

MLA (8th ed.) Citation

Roberts, Michael. Gustavus Adolphus: A History of Sweden, 1611-1632. Longmans, Green, 1953.

Warning: These citations may not always be 100% accurate.