Ricker, W. E. (1968). Methods for assessment of fish production in fresh waters. Published for the International Biological Programme by Blackwell Scientific Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRicker, William Edwin. Methods for Assessment of Fish Production in Fresh Waters. Oxford: Published for the International Biological Programme by Blackwell Scientific Publications, 1968.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRicker, William Edwin. Methods for Assessment of Fish Production in Fresh Waters. Published for the International Biological Programme by Blackwell Scientific Publications, 1968.
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