Young, J. T. (1965). Technicians today and tomorrow. Pitman.
Lua i Stíl Chicago (17ú heag.)Young, J. T. Technicians Today and Tomorrow. London: Pitman, 1965.
Lua MLA (8ú heag.)Young, J. T. Technicians Today and Tomorrow. Pitman, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.