APA (7th ed.) Citation

Dell. (2005). Britannica discovery library vol 1-12. Encyclopedia Britannica.

Chicago Style (17th ed.) Citation

Dell. Britannica Discovery Library Vol 1-12. London: Encyclopedia Britannica, 2005.

MLA (8th ed.) Citation

Dell. Britannica Discovery Library Vol 1-12. Encyclopedia Britannica, 2005.

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