A primary source is described as "any piece of information that was created by someone who witnessed first hand or was part of the historical events that are being described." (]) For our purposes, this includes lines of text from game books and novels, as well as lines of dialogue from episodes, movies and other similar works.
Because WWWiki is not a resource archive, but rather a reference source, it is not appropriate for such information as blocks of dialogue or other documents to be included in WWWiki, except in the form of excerpts (i.e. more than two or three lines). Instead, link to an external website that provides the information (And don't forget to describe external links!)