APA (7th ed.) Citation

Richelieu, A. J. d. P., & T. B. Letters of the Cardinal Duke du Richelieu: Great minister of state to Lewis XIII of France.

Chicago Style (17th ed.) Citation

Richelieu, Armand Jean du Plessis, and T. B. Letters of the Cardinal Duke Du Richelieu: Great Minister of State to Lewis XIII of France.

MLA (9th ed.) Citation

Richelieu, Armand Jean du Plessis, and T. B. Letters of the Cardinal Duke Du Richelieu: Great Minister of State to Lewis XIII of France.

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