International Conference on Lead, Lead Development Association, & European Lead Development Committee. (1962). Lead ... Lead Development Association.
Lua i Stíl Chicago (17ú heag.)International Conference on Lead, Lead Development Association, agus European Lead Development Committee. Lead ... London: Lead Development Association, 1962.
Lua MLA (8ú heag.)International Conference on Lead, et al. Lead ... Lead Development Association, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.