De Silva, G. A. C., & Sathasivampillai, K. (1976). Potato-vegetable cultivation in Nuwara Eliya District of Sri Lanka. Govt. Dept. of Agriculture.
Chicago-стиль цитированияDe Silva, G. A. C., and K. Sathasivampillai. Potato-vegetable Cultivation in Nuwara Eliya District of Sri Lanka. Peradeniya, Sri Lanka.: Govt. Dept. of Agriculture, 1976.
MLA-цитированиеDe Silva, G. A. C., and K. Sathasivampillai. Potato-vegetable Cultivation in Nuwara Eliya District of Sri Lanka. Govt. Dept. of Agriculture, 1976.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.