International Standard Book Number in 1965, has – 340 indicating the publisher, 01381 their serial number, and 8 being the check digit. This can be converted to ; the check digit does not need to be re-calculated. Since 1 January 2007, ISBNs have contained 13 digits, a format that is compatible with "Bookland" European Article Number EAN-13s. An ISBN is assigned to each edition and variation (except reprintings) of a book. For example, an ebook, a paperback, and a hardcover edition of the same book would each have a different ISBN. The ISBN is 13 digits long if assigned on or after 1 January
What Lies Below the van, and carefully rigged it to cave-in upon impact but also make it as painless as possible for Uyeda. To achieve this, they modified the ribs that supported the roof by placing them on pins that would snap, and also added a three-millimeter glass plate that would snap between two sheets of black hard nylon-type plastic to further emphasize the distance she jumped. The first airing of "What Lies Below" was watched by an estimated 6.90 million viewers in the United States, with a 2.6/7 rating for those aged 18–49. SFScope writer Sarah Stegall considered these numbers to be