I'm not sure how to reference the source if I used the Merck Index.

It's the 14th edition and it has the editors and publisher but I'm not sure write the format.

The Merck Index
An Encyclopedia of chemicals, drugs, and biologicals

2 answers

I'm outdated on this but the ACS styleguide probably is your best source for information on scientific citations.

http://karn.wright.edu/chemistry/info/acs.html
Thanks Dr.Bob =D