The works cited entries need to be formatted with proper indentation. In MLA style, the second and subsequent lines of each entry should be indented (this is known as a hanging indent). Additionally, the titles of books should be italicized. Here’s a revised version that includes these corrections:
Works Cited
Gregor, Saul. Harnessing the Wind. Chicago: Skyline Publishing, 1998.
Cayman, Felicia. The Windmill Way. Topeka: Heart of America Press, 2010.
Tudor, Tanya. Off-Shore Sources. Portsmouth: Sunshine House, 2008.
Diaz, Carlos. Alternate Energy. New York: Academic Press, 2003.
Make sure to check the final formatting to ensure proper hanging indents in your document.