Twenty-four leading voice experts speak out on the changing role of voice on stage. Essay topics Re-Discovering Lost Voices • Thoughts on Theatre, Therapy, and the Art of Voice • Finding Our Lost Singing Voices • Voice Training, Where Have We Come From? • Vocal Coaching in Private Practice • more.
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.