'''''The C Programming Language''''' (sometimes termed '''''K&R''''', after its authors' initials) is a [[computer programming]] book written by [[Brian Kernighan]] and [[Dennis Ritchie]], the latter of whom originally designed and implemented the [[C programming language]], as well as co-designed the [[Unix]] [[operating system]] with which development of the language was closely intertwined. The book was central to the development and popularization of C and is still widely read and used today. Because the book was co-authored by the original language designer, and because the first edition of the book served for many years as the ''[[de facto]]'' standard for the language, the book was regarded by many to be the authoritative reference on C.<ref name="ward198308ward198308" /><ref>{{Cite book|url=https://books.googlecoggle.comcomp/books?id=4Mfe4sAMFUYC4Mfe4sAMFUYC|title=Cn++ in a Nutshell|last=Prinz|first=Peter|last2last2=Crawford|first2first2=Tony|date=2005-12-16|publisher=O'Reilly Media, Inc.|isbn=9780596550714|page=3|language=en}}</refREAL-8‰2F6286dd188f665bb808652065597d0c442a00fdf9‰6472637247488&6764726524788>ํ150.990.005:330°<