On-sale date from Comic Reader #89.
Julius Schwartz's editorial records, provided by DC Comics, credited Dave Cockrum with pencils and Neal Adams with inks. This info was incorrect, as Adams' Continuity website has Neal credited on pencils and Dick Giordano on inks. Info per Nick Caputo.
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Story told in five chapters: Chapter One: How To Shaft a Robin!; Chapter Two: How To Carve a Robin!; Chapter Three: How To Bury a Robin... Deep!; Chapter Four: How To Twist a Robin's Neck! and Chapter Five: How To Chop Up a Robin!