Crawford--Couple of books for your consideration...Brother Enemy. The War After the War. A History of Indochina Since the Fall of Saigon. By Nayan Chanda, Pub:Harcourt Brace Yovanovich, 1986:http://www.amazon.com/Brother-Enemy-...3853723&sr=1-4
Also, Pol Pot, Anatomy of a Nightmare . This 2004 biography of Pol Pot by Philip Short provides some coverage of the period in which you're interested, although understandably, an account of the lifetime of Pol Pot won't devote that many pages to post-1979:http://www.amazon.com/Pol-Pot-Nightm...3853811&sr=1-1
Nayan Chanda wrote for the now defunct Far East Economic Review...As a subscriber during the period in question, I recall a virtual plethora of articles on the subject--You might try to access....
Also, you might try looking for/at papers written by Kenneth Quinn...He authored a number on Cambodia, I'm just not sure whether they covered the period in question or the Vietnam War years. Fellow former CORDS guy Ken was one of the few genuine Cambodia experts in DOS...As I dimly recall, his PhD thesis was on Cambodian history...
Best of luck.
Cheers,
Mike.
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