Billheimer, P. E. (1971). Don't waste your sorrows: New insight into God's eternal purpose for each ................ Bethany house.
芝加哥风格引文Billheimer, Paul E. Don't Waste Your Sorrows: New Insight into God's Eternal Purpose for Each ................ Minneapolis: Bethany house, 1971.
MLA引文Billheimer, Paul E. Don't Waste Your Sorrows: New Insight into God's Eternal Purpose for Each ................ Bethany house, 1971.
警告：这些引文格式不一定是100％准确.