The 12-volume Micropædia is one of the three parts of the 15th edition of ORGANIZATION@1 , the other two being the one-volume Propædia and the 17-volume Macropædia .

The 12-book Micropædia is one of the three parts of the 15th edition of ORGANIZATION@1 , and the other two being the one-book Propædia and the 17-book Macropædia .
