Publication date is the eighth core element.
This element describes when the item was published.
Whether the year, month and year, or complete date is cited depends on the information available, the type of source, and the use of the source.
Brinkley, Alan, The Unfinished Nation: A Concise History of the American People. 7th ed, McGraw Hill, 2014.
Kafka, Franz. The Metamorphosis. Translated by Stanley Corngold, 2013 ed., Modern Library, 1915.
Journal, magazine, or newspaper article:
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.
Dickman, Kylie. "Apocalypse in the Garden State." Rolling Stone, no. 1260, 5 May 2016, pp. 36-9.
Dukes, Charlene. "Recognizing our Camelot Moment." Community College Journal, vol. 86, no. 5, Apr./May 2016, p. 1.
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/.
Garber, Megan. "The Trump Campaign Just Became Literature." The Atlantic, 28 June 2016, www.theatlantic.com/entertainment/archive/2016/06/the-trump-campaign-just-became-literature/489140/.
Films or television series:
Alien. 1979. Directed by Ridley Scott, performance by Sigourney Weaver, director's cut, Twentieth Century Fox, 2004.
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, 1 May 2008.
"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.
Comic book issue:
Byrne, John and Jim Lee. "The Resurrection and the Flesh." X-Men, vol. 2, no. 4, Marvel Comics, Jan. 1992.
Social media and online video:
"The H Bomb: Making up for Lost Time: Lost." YouTube, uploaded by ABC's Lost, 24 Nov. 2009, www.youtube.com/watch?v=ueh4yEcjCp4.