Sri Lanka. Janalēkhana hā Saṅkhyālēkhana Depārtamēntuva. (1980). Bulletin of selected retail prices, 1978 to 1980. Dept. of Census and Statistics, Ministry of Plan Implementation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSri Lanka. Janalēkhana hā Saṅkhyālēkhana Depārtamēntuva. Bulletin of Selected Retail Prices, 1978 to 1980. [Colombo]: Dept. of Census and Statistics, Ministry of Plan Implementation, 1980.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSri Lanka. Janalēkhana hā Saṅkhyālēkhana Depārtamēntuva. Bulletin of Selected Retail Prices, 1978 to 1980. Dept. of Census and Statistics, Ministry of Plan Implementation, 1980.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.