APA (7th ed.) Citation

Knecht, R. J. (1991). Richelieu ([1st pub.].). Longman.

Chicago Style (17th ed.) Citation

Knecht, R. J. Richelieu. [1st pub.]. London [etc.]: Longman, 1991.

MLA (9th ed.) Citation

Knecht, R. J. Richelieu. [1st pub.]. Longman, 1991.

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