Colossal Cave Collection - VERY GOOD

Colossal Cave Collection, Barkan, Roger

Colossal Cave Collection (Paperback or Softback)

Colossal Cave Collection Paperback by Roger Barkan

The Longest Cave - Paperback By Brucker, Roger W. - VERY GOOD

Vintage Baby Kermit's Old Blanket (Muppet Babies) by Barkan, Joanne Hardcover

Colossal Cave Collection by Roger Barkan (English) Paperback Book

Longest Cave by Richard A. Watson and Roger W. Brucker (1987, Trade Paperback)