Ali, R., Choudhry, Y. A., & Lister, D. W. (1997). Sri Lanka's tea industry: Succeeding in the global market. World Bank.
Čikaški stil citiranjaAli, Ridwan, Yusuf A. Choudhry, i Douglas W. Lister. Sri Lanka's Tea Industry: Succeeding in the Global Market. Washington D C: World Bank, 1997.
MLA način citiranjaAli, Ridwan, et al. Sri Lanka's Tea Industry: Succeeding in the Global Market. World Bank, 1997.
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