l_blue_book_heading: 133, 530, 500
| bb_heading | bb_chapter | bb_division | description |
|---|---|---|---|
| 133 | 530 EMPLOYER OBLIGATION TO BARGAIN 530 | 500 UNFAIR LABOR PRACTICES 500 | NATURE AND PURPOSE OF COLLECTIVE BARGAINING |
| bb_heading | bb_chapter | bb_division | description |
|---|---|---|---|
| 133 | 530 EMPLOYER OBLIGATION TO BARGAIN 530 | 500 UNFAIR LABOR PRACTICES 500 | NATURE AND PURPOSE OF COLLECTIVE BARGAINING |