Publisher is the seventh core element.
The company or organization primarily responsible for producing the source or making it available is the publisher.
For books, the publisher is listed on the title page.
Brinkley, Alan, The Unfinished Nation: A Concise History of the American People. 7th ed, McGraw Hill, 2014.
Couceiro, Sofia and Jason Hanna. "Kate's Sister, Pippa Middleton, Announces Engagement." CNN, 19 July 2016, www.cnn.com/2016/07/19/europe/uk-pippa-middleton-engagement/index.html.
DiFrancesco, Tim. "The 4-Week Fitness Plan to Increase Strength: Day 9." Hello Healthy, My Fitness Pal, 2 June 2016, blog.myfitnesspal.com/4-week-fitness-plan-increase-strength-day-9/.
The Big Lebowski. Directed by Joel Coen, performances by Jeff Bridges and Julianne Moore, Polygram Filmed Entertainment, 1998.
"Something Nice Back Home." Lost, directed by Stephen Williams, performance by Matthew Fox, season 4, episode 10, Bad Robot, 2008.
"Hush." Buffy the Vampire Slayer, created by Joss Whedon, season 4, episode 10, Mutant Enemy / WB Television Network, 14 Dec. 1999.
"Hush." 1999. Buffy the Vampire Slayer: The Complete Fourth Season, created by Joss Whedon, episode 10, Mutant Enemy / Twentieth Century Fox, 2003, disc 3. DVD.
Byrne, John and Jim Lee. "The Resurrection and the Flesh." X-Men, vol. 2, no. 4, Marvel Comics, Jan. 1992.