I have one old copy of his Engineer's Notebook II with the Radio Shack Cat #276-5002 and the $2.49 price sticker. I want to say early 1980s give or take. I think the first version had a blue cover and this one is yellow. Somewhere buried around here I have a bunch of his notebooks along with other old books.When I ordered them from Amazon US many years ago, the postages was about the same as the book cost.
Allen
by Jake Hertz
by Jake Hertz
by Jake Hertz
by Aaron Carman