B12 — Editor invitado⧉

<?xml version="1.0" encoding="UTF-8"?>
<Product xmlns="http://ns.editeur.org/onix/3.0/reference">
  <DescriptiveDetail>
    <Contributor>
      <ContributorRole>B12</ContributorRole>
    </Contributor>
  </DescriptiveDetail>
</Product>

• Introducido en la Issue 0 (o anterior)