DeWolf, L. H. (1971). Responsible freedom: Guidelines to Christian action. Harper & Row.
芝加哥风格引文DeWolf, Lotan Harold. Responsible Freedom: Guidelines to Christian Action. New York [u.a.]: Harper & Row, 1971.
MLA引文DeWolf, Lotan Harold. Responsible Freedom: Guidelines to Christian Action. Harper & Row, 1971.
警告：这些引文格式不一定是100％准确.