Kernighan and Plauger "Elements of Programming Style" may be out of print, but there seem to be many used copies available. For example: https://www.amazon.com

Kernighan and Plauger "Elements of Programming Style" may be out of print, but there seem to be many used copies available. For example: https://www.amazon.com/gp/offer-listing/0070341990/ref=tmm_pap_used_olp_sr?ie=UTF8&condition=used&qid=1548819400&sr=8-1 https://www.amazon.com/gp/offer-listing/0070341990/ref=tmm_p...