Thank you markbau for your comment.
I just read his article Basic of Fine printing in Special issue #11 of Photo Techniques magazine and I must admit, I really liked his writing style and observations.
He has 3 articles in that issues. Other is about unsharp masking and third is about printing one of his landscapes.He mentions that other article there, so I wanted to read it too.
If there is the link to digitized version of the magazine, it will be amazing. It's so sad that so much knowledge and experience got lost every second.
I'm not sure how Howard's books are written, from compilation of his magazine articles or??
Reading David Vestal's 2 books was pleasure too.