The term "author" is used loosely to mean the person or group primarily responsible for producing the source. Editors, translators, performers, and corporate authors may fill the author core element, but a descriptive label should be included.
Brinkley, Alan. The Unfinished Nation: A Concise History of the American People. 7th ed, McGraw Hill, 2014, p. 525.
McKee, Timothy, and James A. McKee. Business Ethics: The Political Basis of Commerce. Oxford UP, 2009.
Tucker, Virginia M., et al. “Learning Portals: Analyzing Threshold Concept Theory for LIS Education.” Journal of Education for Library and Information Science, vol. 55, no. 2, Apr. 2014, pp. 150-65. Academic OneFile, db12.linccweb.org/login?url=http://go.galegroup.com/ps/i.do?id=GALE%7CA369065399&v=2.1&u=lincclin_ircc&it=r&p=AONE&sw=w&asid=481641178d785366b35d618e23308ebf.
DiYanni, Robert, editor. Literature: Reading Fiction, Poetry, and Drama. 6th ed., McGraw Hill, 2007.
Zeigler-Hill, Virgil, and David K. Marcus, editors. The Dark Side of Personality: Science and Practice in Social, Personality, and Clinical Psychology. American Psychological Association, 2016.
Damrosch, David, et al., editors. The Longman Anthology of World Literature, 2nd ed., vol. A, Pearson Education, 2009.
Planned Parenthood. "Body Image." Learn, 2016, www.plannedparenthood.org/learn/body-image.