The posted cover [image# 906270] with Ballantine no. 01623 does not match the ISBN nos., which may be for a later (1980s) reprint. Also, the entry includes ISBN and bar code numbers, neither of which were in use in 1969, so there appears to be some confusion over the date.
As it happens, I have a copy of Ballantine 01623, the cover of which had been removed for store credit.