Book Citations

As I've been reading more non-fiction political/economics books, I been noticing the endnotes are usually done in this general form (in this case, citing a newspaper article):

First Last, "Article Title," <i>Blank Times</i>, 8 September 2014.

It's surely not a form of MLA or APA, so is there a particular name for this style of endnotes or was it just invented by the authors?

*Note that the <i> </i> represents italics.