The Handbook of Road Safety Measures: Second Edition by Rune Elvik: New

The percentage of alcohol present in an alcoholic beverage, expressed as a proportion of the total liquid volume. It indicates how strong the drink is and helps consumers compare products or comply with legal limits.

A unique identifier assigned to books and other printed publications, typically consisting of 10 or 13 digits. It may include hyphens for readability but is treated as a string value. The ISBN uniquely identifies a specific edition of a title across the publishing industry.

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