Worthington, E. L. (1987). Counseling for unplanned pregnancy and infertility. Resources for Christian counseling.
芝加哥风格引文Worthington, Everett L. "Counseling for Unplanned Pregnancy and Infertility." Resources for Christian Counseling 1987.
MLA引文Worthington, Everett L. "Counseling for Unplanned Pregnancy and Infertility." Resources for Christian Counseling, 1987.
警告：这些引文格式不一定是100％准确.