Translation of: 'Methodik geistiger Arbeit : programmiert lernen'. 2.Aufl. München [Munich] : Verlag Moderne Industrie, 1973.
How to put method into your thinking : a teach-yourself programmed course in 14 self-contained learning units, with practical exercises by Wolfgang Zielke. ISBN 0900537205. Published by Leviathan House in 1974. Publication and catalogue information, links to buy online and reader comments.