• 6.1 (pp.336-337): 2, 3, 4, 5, 8, 9, 10, 11, 12, 16, 17
  
• 6.2 (pp.352-356): 2, 3, 4, 5, 6, 7, 9, 19, 20, 21, 22
  
• 6.3 (pp.367-388): 20, 21
  

Last update made April 8, 2020