There are 3 books by Armin Gretler on BookOrb. A strong starting point is The training of adult middle-level personnel (1972). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Showing 1 of 3 titles.
Frequently asked questions
How many books has Armin Gretler written?
BookOrb lists 3 books by Armin Gretler.
Where should I start with Armin Gretler?
A good starting point is The training of adult middle-level personnel (1972).
What is the Armin Gretler books in order list?
In publication order: 1. The training of adult middle-level personnel (1972).