CONTAINS ADULT MATERIAL From Italy, (very) large format softcover book/magazine, out of print Glamour International Magazine features lots of risque art! Hard to find back This is The December 1986 #8 issue which is dedicated to kissing and to "The Kiss" in general. 84 pages of great adult art, and this issue is more like a book than a magazine.
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.