Stone. Reinhold Niebuhr in the 1960s. Augsburg Fortress Publishers.
芝加哥风格引文Stone. Reinhold Niebuhr in the 1960s. Augsburg Fortress Publishers.
MLA引文Stone. Reinhold Niebuhr in the 1960s. Augsburg Fortress Publishers.
警告：这些引文格式不一定是100％准确.
APA引文