Central Bureau for Educational Visits and Exchanges & Sewell, T. (1995). Volunteer work: The complete guide to voluntary service (6th ed.). Central Bureau for Educational Visits & Exchanges.
Citace podle Chicago (17th ed.)Central Bureau for Educational Visits and Exchanges a Thom Sewell. Volunteer Work: The Complete Guide to Voluntary Service. 6th ed. London: Central Bureau for Educational Visits & Exchanges, 1995.
Citace podle MLA (8th ed.)Central Bureau for Educational Visits and Exchanges a Thom Sewell. Volunteer Work: The Complete Guide to Voluntary Service. 6th ed. Central Bureau for Educational Visits & Exchanges, 1995.
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