After an exhausting session with Victoria's Secret Police, Chris
Spierings blurted out:

I'd like to learn more about the various roles and missions the B-57 was
used for in Viet Nam. Can anyone point to written material or resources
that might be worth having a look at?

Specifically for SEA look for Robert C. Mikesh's "B-57 Canberra at War
1964-1972." **or** "Martin B-57 Canberra: The Complete Record."

The second one is a re-titled version of the first, this time
published by Schiffer. Mikesh was a B-57 pilot and at one time the
Curator of the NASM.

Juvat