Johnson, D. W. (1978). The care and feeding of volunteers. Abingdon.
Chicagoスタイル(17版)引用形式Johnson, Douglas W. The Care and Feeding of Volunteers. Nashville: Abingdon, 1978.
MLA(9版)引用形式Johnson, Douglas W. The Care and Feeding of Volunteers. Abingdon, 1978.
警告: この引用は必ずしも正確ではありません.