[h=2]Blitz BASIC for the Amiga: A Complete Programming Guide by Neil Wright seem impossible to find but there is new Blitz Basic that I have found may help you.[/h]
https://amiga.net.pl/index.php?lng=pl&kwt=10010&tms=92
https://amiga.net.pl/index.php?lng=pl&kwt=10010&tms=92