The five gently spine-tingling, funny stories in this Level Two I Can Read box set are sure to delight early readers. Titles This is a Level Two I Can Read box set, geared for kids who read on their own but still need a little help.
Various is the correct author for any book with multiple unknown authors, and is acceptable for books with multiple known authors, especially if not all are known or the list is very long (over 50).
If an editor is known, however, Various is not necessary. List the name of the editor as the primary author (with role "editor"). Contributing authors' names follow it.
Note: WorldCat is an excellent resource for finding author information and contents of anthologies.