Which versions of Unix have the C shell

[Nancy Blachman]

I know that 4.1, 4.2, and Xenix have the C shell.  What other
versions of Unix also have the C shell legitimately?

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Nancy Blachman 		UUCP: {allegra,hplabs,ihnp4,ucbvax!sun}!resonex!nancy  
(408)720 8600 x37 	ARPA: sun!resonex!nancy at ucbvax.ARPA