* Chevalley, C., ''Theory of Lie Groups'', Princeton University Press, Princeton, NJ, 1946.
* Chevalley, C., ''Theory of Lie Groups'', Princeton University Press, Princeton, NJ, 1946.
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* Chomsky, N., ''The Logical Structure of Linguistic Theory''. (Based on a widely circulated manuscript dated 1955). University of Chicago Press, Chicago, IL, 1975.