Editore: Bochum: Buchhandlung Brockmeyer, 1970
Da: Cragsmoor Books, Cragsmoor, NY, U.S.A.
Soft cover. Condizione: Very Good. No Jacket. Lt. grey bds., black lettering. 157pp., incl. bibliography. Dissertation, Eberhard-Karls-Universitat, Tubingen. In German.