(1973). 1914: delusion or design?: The testimony of two German diplomats. Introd., with a foreword by Hugh Trevor-Roper. Elek.
Chicago-Zitierstil (17. Ausg.)1914: Delusion or Design?: The Testimony of Two German Diplomats. Introd., with a Foreword by Hugh Trevor-Roper. London: Elek, 1973.
MLA-Zitierstil (9. Ausg.)1914: Delusion or Design?: The Testimony of Two German Diplomats. Introd., with a Foreword by Hugh Trevor-Roper. Elek, 1973.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.