[Dtb-talk] Joe Riker series

[Mike Gilmore]

Hi everybody,
 
I'm trying to locate the six books in the Joe Riker series by Nelson Demille. They were originally published under his name in the '70's; then, in 1989, they were published under his nom de plume "Jack Cannon."
 
I've looked on the NLS site as well as bookshare and no luck. Does anyone know where these books are available? They're the only Demille fiction I am unable to find. (I've seen some of the paperbacks on amazon but they want an arm and a leg for them. I thought about purcahsing them and donating them to bookshare; however, the price as well as only part of the series being on there prevents me from doing so.)
 
Thanks.
 
Mike