Não informado. (1970). Ag-chem digest. Union Carbide Corporation.
Lua i Stíl Chicago (17ú heag.)Não informado. Ag-chem Digest. New York: Union Carbide Corporation, 1970.
Lua MLA (8ú heag.)Não informado. Ag-chem Digest. Union Carbide Corporation, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.