National Council for Voluntary Organisations (Great Britain). (1999). The Voluntary agencies directory, 1999 (18th ed.). NCVO Publications.
Chicagoスタイル(17版)引用形式National Council for Voluntary Organisations (Great Britain). The Voluntary Agencies Directory, 1999. 18th ed. London: NCVO Publications, 1999.
MLA(9版)引用形式National Council for Voluntary Organisations (Great Britain). The Voluntary Agencies Directory, 1999. 18th ed. NCVO Publications, 1999.
警告: この引用は必ずしも正確ではありません.