Primarily used by journalists, AP Style is the standard for writing newspaper and magazine articles. Although publications may have different in-house rules for formatting and composing documents, AP Style forms the basis for each of them: concision, clarity, accuracy, and brevity are key to writing effective documents, according to the Purdue OWL.
Citing in AP Style is less involved than in other citation styles; typically, all that is needed is needed is the acknowledgement of the speaker before or after the quote (i.e. no date or page number required). A few examples below from the Writers Stack Exchange:
Furthermore, no bibliography is required for a document written in AP Style.