Não informado. (1970). Refrigeration and Air Conditioning. Maclaren Publishers.
Lua i Stíl Chicago (17ú heag.)Não informado. Refrigeration and Air Conditioning. Croydon, Inglaterra: Maclaren Publishers, 1970.
Lua MLA (8ú heag.)Não informado. Refrigeration and Air Conditioning. Maclaren Publishers, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.