APA引文

Gregory, O. B. (1974). Comprehension and study cards (Rev. ed.). Wheaton.

芝加哥风格引文

Gregory, O. B. Comprehension and Study Cards. Rev. ed. Exeter, Eng.: Wheaton, 1974.

MLA引文

Gregory, O. B. Comprehension and Study Cards. Rev. ed. Wheaton, 1974.