Παραπομπή σε μορφή APA (7η εκδ.)

National Council for Voluntary Organisations (Great Britain). (1999). The Voluntary agencies directory, 1999 (18th ed.). NCVO Publications.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Council for Voluntary Organisations (Great Britain). The Voluntary Agencies Directory, 1999. 18th ed. London: NCVO Publications, 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

National Council for Voluntary Organisations (Great Britain). The Voluntary Agencies Directory, 1999. 18th ed. NCVO Publications, 1999.