Avez-vous un talon d'Achille ? Connaissez-vous David et Goliath ? Etes-vous riche comme Crésus ou bête comme un mouton de Panurge ? Derrière ces expressions, se cachent de drôles d'anecdotes qui nous viennent de l'Histoire, de la mythologie ou de la littérature. A vous de les découvrir à travers ce dico rigolo et vous pourrez ainsi être fier comme Artaban !
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.