I'm writing a paper, which follows ACM style in latex. The document class I used is \documentclass{sig-alternate}.

My problem is that when I use natbib package to make the references and citation in sequence, reference heading becomes in lower case and also removes the serial number of the reference section. Note ACM uses a serial number for this section. I have also used other packages for other works. The used packages are as follows:


I am using sigproc file as BibTex database for the reference list, and used the following commands:


The reference section is look like: "Reference", instead of "9. REFERENCE". Please help! Thanks.

  • Since you want to use the natbib package, don't also load the cite package (twice!). – Mico Nov 9 '15 at 6:39

According to the natbib manual one has to redefine \bibsection, thus your can achieve what you want with

  • many thanks! It worked for me. – user24094 Nov 9 '15 at 15:02

Your Answer


By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Not the answer you're looking for? Browse other questions tagged or ask your own question.