MLA is the favored citation format for the humanities.
Purdue's OWL (Online Writing Lab) has an extensive guide to understanding MLA - the format, the purpose, and much more. This is an authoritative site.
The Purdue OWL MLA Classroom Poster was developed by Kate Bouwens for the Purdue Professional Writing - Purdue OWL Internship class, English 490, in spring 2009. Successive contributors include Elizabeth Geib and Rachel Atherton.
This citation creator has no ads and helpful guidance through the 'whys' of formatting. You can import your Works Cited list to Google Docs or Word, but once you close the program, it's gone.
The option to use APA instead can be found at the bottom.
Video - Why You Need to Cite Sources
"Why You Need to Cite Sources" YouTube, uploaded by OLSIS Secondary Videos, June 4, 2017, https://youtu.be/4v9mRHivjX4.