Pfister,Robert E & Tierney,Patrick. Recreation,Event & tourism business. Huaman Kinetics.
Lua i Stíl Chicago (17ú heag.)Pfister,Robert E & Tierney,Patrick. Recreation,Event & Tourism Business. Champaign: Huaman Kinetics.
Lua MLA (9ú heag.)Pfister,Robert E & Tierney,Patrick. Recreation,Event & Tourism Business. Huaman Kinetics.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.