"Praying Bible Promises" is both a teaching book and a devotional/prayer book that leads the reader, step by step, into the miraclous realm of praying the Scriptures. This small, but powerful book will show what happens when 1- Know God's Word 2- Believe & Receive God's Promises 3- Lay Claim to your Rightful Inheritance 4- Trust Prayer Promises from God's Word 5- Follow God's Will 6- Pray the Promises He Has Given to You and for You
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.