Read the rough draft of a works cited page.

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.

what additional information is needed for each book entry to follow mla guidelines?

a word describing the medium
a description of the book’s circulation
the month and day the book was read
the number of pages in the book

The basic rules of MLA (Modern Language Association) for Works Cited Page should include: “Author. Title. Title of container (self contained if book), Other contributors (translators or editors), Version (edition), Number (vol. and/or no.), Publisher, Publication Date, Location (pages, paragraphs URL or DOI). 2nd container’s title, Other contributors, Version, Number, Publisher, Publication date, Location, Date of Access (if applicable).”

After MLA Handbook (8th ed.) a word describing the medium is not applicable anymore because nowadays books come in many forms together including audios or CDs, also books don't need the information about the month and day the book was read, while a description of the book’s circulation is for the library, so the most correct answer is The number of pages in the book, that is the same as information about Location.