Venables, K. (1994). Prevention of occupational asthma.
Lua i Stíl Chicago (17ú heag.)Venables, K. Prevention of Occupational Asthma. 1994.
Lua MLA (9ú heag.)Venables, K. Prevention of Occupational Asthma. 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.