APA (7th ed.) Citation

Limm, P. (1991). The Thirty Years War. Longman.

Chicago Style (17th ed.) Citation

Limm, Peter. The Thirty Years War. London [etc.]: Longman, 1991.

MLA (9th ed.) Citation

Limm, Peter. The Thirty Years War. Longman, 1991.

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