Não informado. (1969). Applied Ergonomics. Life Science and Technology Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Applied Ergonomics. Guildford, Inglaterra: Life Science and Technology Publications, 1969.
Lua MLA (8ú heag.)Não informado. Applied Ergonomics. Life Science and Technology Publications, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.