The Royal Society of Chemistry (RSC) have a specific style, which they use across their journals. It is a numeric style, which uses superscript numbers for in-text citations. The RSC manual is a great starting point to get to grips with this style, but why not check out The University of Bath's help sheet as well which gives practical examples? If that doesn't satisfy your appetite, may we suggest you also head over to Nottingham Trent University's RSC Style Guide which is more detailed in nature and includes not only further examples, but also advice on how to get the superscript numbers in Mircrosoft word.
And last but not least, if you are still struggling, why not look at some published articles using RSC style to see how it actually works in practice? Happy referencing!
© 2014 Newcastle University