Sarkar, G. K. (1972). The world tea economy. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Sarkar, Goutam K. The World Tea Economy. Delhi: Oxford University Press, 1972.
Lua MLA (8ú heag.)Sarkar, Goutam K. The World Tea Economy. Oxford University Press, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.