Sri Lanka. Janalēkhana hā Saṅkhyālēkhana Depārtamēntuva. (1980). Bulletin of selected retail prices, 1978 to 1980. Dept. of Census and Statistics, Ministry of Plan Implementation.
Chicago-viite (17. p.)Sri Lanka. Janalēkhana hā Saṅkhyālēkhana Depārtamēntuva. Bulletin of Selected Retail Prices, 1978 to 1980. [Colombo]: Dept. of Census and Statistics, Ministry of Plan Implementation, 1980.
MLA-viite (8. p.)Sri Lanka. Janalēkhana hā Saṅkhyālēkhana Depārtamēntuva. Bulletin of Selected Retail Prices, 1978 to 1980. Dept. of Census and Statistics, Ministry of Plan Implementation, 1980.
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