Zock, H. (1990). A psychology of ultimate concern: Erik H. Erikson's contribution to the psychology of religion. International series in the psychology of religion.
芝加哥风格引文Zock, Hetty. "A Psychology of Ultimate Concern: Erik H. Erikson's Contribution to the Psychology of Religion." International Series in the Psychology of Religion 1990.
MLA引文Zock, Hetty. "A Psychology of Ultimate Concern: Erik H. Erikson's Contribution to the Psychology of Religion." International Series in the Psychology of Religion, 1990.
警告：这些引文格式不一定是100％准确.