This may depend on your proofreader as well as the style guide you specify (e.g. if your university requires APA or MLA, or you’re looking to be published by the “Big Five” publishers). Some standard style guides include The Chicago Manual of Style, the Publication Manual of the American Psychological Association (APA), MLA Style Manual and Guide to Scholarly Publishing, the Microsoft Manual of Style for Technical Publications, The Gregg Reference Manual, the Associated Press Stylebook.