references

(Thanks Jonathan and Alexander!)

Kernighan & Ritchie The C Programming Language, 2nd Ed.
The superb online C FAQ
Rob Pike, Notes on Programming in C
Steve Summit, notes for an introductory course on C Programming
UTK and ORNL Netlib Repository
William H. Press, Numerical Recipes in C
Kernighan and Plauger, The Elements of Programming Style, 2nd Ed.
S.P. Harbison, Guy L. Steele Jr, C, a Reference Manual, 6th Ed.
Kernighan and Pike, The Practice of Programming