Basic Elements of a Reference Citation:
With Author:
Author, A. A. (Date). Title of entry. In Title of work. Publisher. DOI/URL
No Author (Name of Organization Different from Title of Work):
Name of Organization. (Date). Title of entry. In Title of work. DOI/URL
No Author (Name of Organization Identical to Title of Work):
Title of entry. (Date). In Title of work. DOI/URL
No Publication Date:
Author, A. A. (n.d.). Title of entry. In Title of work. Retrieved Month Day, Year, from DOI/URL
Dictionary
Catawampus. (n.d.). In Merriam-Webster.com dictionary. Retrieved January 16, 2020, from https://www.merriam-webster.com/dictionary/catawampus
Encyclopedia
Mervin, D. (2018). Electoral college. In G. W. Brown, I. McLean, & A. McMillan (Eds.), A concise Oxford dictionary of politics and international relations (4th ed.). Oxford University Press. https://www.oxfordreference.com/view/10.1093/acref/9780199670840.001.0001/acref-9780199670840-e-397
Wikipedia
Use the date that the entry was last edited, which is found under "view history."
Intersectionality. (2020, January 12). In Wikipedia. https://en.wikipedia.org/wiki/Intersectionality