Johnson, D. W. (1978). The care and feeding of volunteers. Abingdon.
芝加哥风格引文Johnson, Douglas W. The Care and Feeding of Volunteers. Nashville: Abingdon, 1978.
MLA引文Johnson, Douglas W. The Care and Feeding of Volunteers. Abingdon, 1978.
警告：这些引文格式不一定是100％准确.