APA (7th ed.) Citation

(2011). Explanation of how the periodic table of elements is arranged. Encyclopedia Britannica.

Chicago Style (17th ed.) Citation

Explanation of How the Periodic Table of Elements Is Arranged. Chicago, IL: Encyclopedia Britannica, 2011.

MLA (9th ed.) Citation

Explanation of How the Periodic Table of Elements Is Arranged. Encyclopedia Britannica, 2011.

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