Stern, G. J. (1994). Marketing workbook for nonprofit organizations. Amherst H. Wilder Foundation.
Cita Chicago Style (17a ed.)Stern, Gary J. Marketing Workbook for Nonprofit Organizations. St. Paul, Minn.: Amherst H. Wilder Foundation, 1994.
Cita MLA (9a ed.)Stern, Gary J. Marketing Workbook for Nonprofit Organizations. Amherst H. Wilder Foundation, 1994.
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