Crutchfield, J. A., & Pontecorvo, G. (1969). The Pacific salmon fisheries: A study of irrational conservation. Published for Resources for the Future by Johns Hopkins Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCrutchfield, James Arthur, और Giulio Pontecorvo. The Pacific Salmon Fisheries: A Study of Irrational Conservation. [Baltimore]: Published for Resources for the Future by Johns Hopkins Press, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCrutchfield, James Arthur, और Giulio Pontecorvo. The Pacific Salmon Fisheries: A Study of Irrational Conservation. Published for Resources for the Future by Johns Hopkins Press, 1969.
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