Ilsey, P. J. (1990). Enhancing the volunteer experience: New insights on strengthening ... Jossey-Bass.
Lua i Stíl Chicago (17ú heag.)Ilsey, Paul J. Enhancing the Volunteer Experience: New Insights on Strengthening ... San Francisco: Jossey-Bass, 1990.
Lua MLA (9ú heag.)Ilsey, Paul J. Enhancing the Volunteer Experience: New Insights on Strengthening ... Jossey-Bass, 1990.
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