Mayer, F., & Spencer, H. Chakkar: Polo around the world. Herbert Spencer.
Lua i Stíl Chicago (17ú heag.)Mayer, Fred, agus Herbert Spencer. Chakkar: Polo Around the World. : Herbert Spencer.
Lua MLA (9ú heag.)Mayer, Fred, agus Herbert Spencer. Chakkar: Polo Around the World. Herbert Spencer.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.