Inter-Ski Services Inc

year of pub­li­ca­ti­onISBNauthor(s)title
978-0-931636-03-5The White Book Of Ski Areas, 1982 1983
1983978-0-931636-07-3Robert G. EnzelThe White Book of Ski Areas: U. S. and Canada
1984978-0-931636-09-7Robert G. EnzelThe White Book of Ski Areas, 1984-1985
1997978-0-931636-22-6   ''White Book of Ski Areas: United States and Canada
2002978-0-931636-26-4The White Book of Ski Areas