Slack, K. M. (1967). Constancy and change in the Society of Friends. Swarthmore Lecture.
芝加哥风格引文Slack, Kathleen M. "Constancy and Change in the Society of Friends." Swarthmore Lecture 1967.
MLA引文Slack, Kathleen M. "Constancy and Change in the Society of Friends." Swarthmore Lecture, 1967.
警告：这些引文格式不一定是100％准确.