You might be thinking of the APA style guide. I think the parent was talking about the AP Stylebook, which is the style guide used by the Associated Press.
Yes, Associated Press. And to clarify, that style (at least back when I was doing this) was typically followed by print publications, as the “standard.”
A notable exception being the New York Times, but now we are at the edge of my knowledge about this.
A notable exception being the New York Times, but now we are at the edge of my knowledge about this.