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Books about Lennhoff:
The Last Five Hours of Austria, by Eugene Lennhoff ... with an Introduction by Paul Frischauer by Eugene Lennhoff (1938)
The Impact of Psychology on Social Work & Teaching: A Report on the 1972 Conference Organised By F G Lennhoff... by F G (Introduction) Lennhoff (1972)
Preventive Work with Children and Adolescents: A Report on the 1968 Conference Directed By F G Lennhoff with His... by F G (Introduction) Lennhoff (1968)