APA (7th ed.) Citation

American Chemical Society. Chemical Abstracts Service. (2009). CAS source index (CASSI) search tool. American Chemical Society.

Chicago Style (17th ed.) Citation

American Chemical Society. Chemical Abstracts Service. CAS Source Index (CASSI) Search Tool. [Washington, D.C.]: American Chemical Society, 2009.

MLA (9th ed.) Citation

American Chemical Society. Chemical Abstracts Service. CAS Source Index (CASSI) Search Tool. American Chemical Society, 2009.

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