Many journals and professional society publishers specify their own citation styles, which will vary in some aspects from more widely-used citation styles. Examine the reference section of articles from a particular journal for examples of formatting, but be aware that editors may not always catch author errors prior to publication. For specifics, locate a journal or publisher website and look for a link to "authors," "instructions for authors," "author guidelines," "manuscript submission," "submission guidelines," or similar information. For example, here is the guide for authors and manuscript requirements for IEEE publications.