BLY, S.; KEITH, S. Draft Canadian guidelines for machinery noise emission labelling. Canadian Acoustics, [S. l.], v. 25, n. 3, p. 28–28, 1997. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1094. Acesso em: 19 apr. 2024.