Não informado. (1973). Journal of the Society of Leather Technologists and Chemists. Society of Leather Technologists and Chemists.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of the Society of Leather Technologists and Chemists. Redbourne, Inglaterra: Society of Leather Technologists and Chemists, 1973.
Lua MLA (8ú heag.)Não informado. Journal of the Society of Leather Technologists and Chemists. Society of Leather Technologists and Chemists, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.