Citez comme : (2021, janvier) IFRA Standards Library. https://geertdevuyst.fr/publication/2020-ifra-standards-library-49th-amendment/
TitreIFRA Standards LibraryAuteur(s)The International Fragrance AssociationVersion49th AmendmentAnnée de publication2020EditeurThe International Fragrance AssociationURLhttps://ifrafragrance.org/ Citez commeThe International Fragrance Association (2020). IFRA Standards Library. 49th Amendment. https://ifrafragrance.org/