California Code, Education Code - EDC § 19911

Any person who willfully detains any book, newspaper, magazine, pamphlet, manuscript, or other property belonging to any public or incorporated library, reading room, museum, or other educational institution, for 30 days after notice in writing to return the article or property, given after the expiration of the time for which by the rules of the institution the article or property may be kept, is guilty of a misdemeanor.

The parent or guardian of a minor who willfully and maliciously commits any act within the scope of this section shall be liable for all damages so caused by the minor.