I think this is a typo:
Page 147.. the only thing hightlighed on the page:
Fa0/20 Root FWD 200000 128.20 P2p
Nope... my bad. Upon further reading, the listing is from "show spanning-tree mst 1" for the local port-priority. To get the 16.20, you need to do "show spanning-tree mst 1 detail". That definitely helped me with the difference between the two commands.