"Removing+Puzzle+Pieces+Stuck+to+Glass+-+Association+for+Library+Collections+&+Technical+Services+(ALCTS)", American Library Association, dynamically generated page.
http%3A%2F%2Fwww.ala.org%2Falcts%2Fpreservationweek%2Fadvice%2Fframedpuzzle (Accessed April 18, 2024)
