MORGAN, P. (1962). Progress In Plastics 1961. the Macmillan Company.
Lua i Stíl Chicago (17ú heag.)MORGAN, Phillip. Progress In Plastics 1961. the Macmillan Company, 1962.
Lua MLA (8ú heag.)MORGAN, Phillip. Progress In Plastics 1961. the Macmillan Company, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.