APA (7th ed.) Citation

Sayers, D. L., & Carmichael, I. (2007). Strong poison. BBC Audiobooks America.

Chicago Style (17th ed.) Citation

Sayers, Dorothy L., and Ian Carmichael. Strong Poison. North Kingston, RI: BBC Audiobooks America, 2007.

MLA (8th ed.) Citation

Sayers, Dorothy L., and Ian Carmichael. Strong Poison. BBC Audiobooks America, 2007.

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