What does a play have that a story doesn't?

Plays are not written in paragraphs like a novel or short story. Instead, they are written as lines of dialogue in the form of a script. ... Typically, these scripts are broken down into one or more acts, or major divisions of the play. And each act is then subdivided into a scene, or smaller divisions within the act.

About 16 i think i couldn't find it on the internet

In mla style, the works cited page provides information about all the sources cited within the paper or document written. it is often place at the end of the work and it generally   contains the complete name of the author, name of the book/article, etc, place and date.