Heeren, J. J. (1940). On the Shantung front: A history of the Shantung mission of the Presbyterian church in the U. S. A., 1861-1940 in its historical, economic, and political setting. The Board of foreign missions of the Presbyterian church in the United States of America.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Heeren, John J. On the Shantung Front: A History of the Shantung Mission of the Presbyterian Church in the U. S. A., 1861-1940 in Its Historical, Economic, and Political Setting. New York: The Board of foreign missions of the Presbyterian church in the United States of America, 1940.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Heeren, John J. On the Shantung Front: A History of the Shantung Mission of the Presbyterian Church in the U. S. A., 1861-1940 in Its Historical, Economic, and Political Setting. The Board of foreign missions of the Presbyterian church in the United States of America, 1940.