The diplomacy of the Balkan wars, 1912-1913Ernst Christian Helmreich · First published 1938 · Latest edition 1969Open the Tome
A Free church in a free state? the Catholic Church, Italy, Germany, France, 1864-1914Ernst Christian Helmreich · First published 1964Open the Tome
Religious Education In German Schools. An Historical Approach.Ernst Christian Helmreich · First published 1959Open the Tome
The Russo-Bulgarian military convention of 1902Ernst Christian Helmreich, Cyril Edwin Black · First published 1937Open the Tome
