These are the books that I mentioned on 2015-03-02 and 2015-03-04:

 • Kernighan Brian W., Ritchie Dennis M., „ANSI C”, Prentice Hall, 1988
 • Kochan S., „Programming in Objective-C”, Addison-Wesley Professional, 2013
 • Hillegass A., „Cocoa Programming for Mac OS X”, Addison-Wesley Professional, 2011