Here is my bookshelf, or at least the organized part of it, when (if) I get around to organizing the rest of my books I will list those as well. 
From left to right the ones relating to Vietnam are:
The Eyes Of The Eagle F Company LRPs in Vietnam, 1968 - Gary A. Linderer
Eyes Behind The Lines L Company Rangers in Vietnam, 1969 - Gary A. Linderer
Six Silent Men 101st LRP/Rangers Book Two - Kenn Miller
Six Silent Men 101st LRP/Rangers Book Three - Gary A. Linderer
Death In The A Shau Valley L Company LRRPs in Vietnam, 1969-70 - Larry Chambers
LRRP Team Leader - John Burford
Diary Of An Airborne Ranger A LRRP's Year in the Combat Zone - Frank Johnson
Ripcord Screaming Eagles Under Siege Vietnam 1970 - Keith W. Nolan
Wings Of The Eagle A Kingsmen's Story - W.T. Grant
Lest We Forget The Kingsmen, 101st Aviation Battalion, 1968 - William C. Meacham
Snake Pilot - Randy R. Zahn
The rest of the books are aviation (mostly about Tomcats including a NATOPS pocket checklist) related, oh and I have my map of the A Shau tucked in at the end as well.
They wrote quite a bit more than those three books, all the books I listed except Ripcord and Snake Pilot are from people in that unit who served in the unit with one another albeit some for a short time. The two Kingsmen books are from huey pilots who routinely volunteered to fly LRRP and SOG missions, trained with (in case of a crash) and were considered honorary LRRPs by the unit. It is very fascinating to see some of the events told in these books from three or four different viewpoints.