Epstein, M. J., & Yuthas, K. (2014). Measuring and improving social impacts: A guide for nonprofits, companies, and impact investors (First edition.). Berrett-Koehler Publishers.
Citace podle Chicago (17th ed.)Epstein, Marc J., a Kristi Yuthas. Measuring and Improving Social Impacts: A Guide for Nonprofits, Companies, and Impact Investors. First edition. San Francisco: Berrett-Koehler Publishers, 2014.
Citace podle MLA (9th ed.)Epstein, Marc J., a Kristi Yuthas. Measuring and Improving Social Impacts: A Guide for Nonprofits, Companies, and Impact Investors. First edition. Berrett-Koehler Publishers, 2014.
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