Hardwick, W. A. (1995). Handbook of brewing. Marcel Dekker.
Lua i Stíl Chicago (17ú heag.)Hardwick, William A. Handbook of Brewing. Nueva York: Marcel Dekker, 1995.
Lua MLA (9ú heag.)Hardwick, William A. Handbook of Brewing. Marcel Dekker, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.