| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Measuring and Improving Social Impacts: A Guide for Nonprofits, Companies, and Impact Investors | 978-1-6O994-977-8 (1-6O994-977-3) | 2014 | Marc J. Epstein |
Kristian Yorda Barbara Erlakher-Farkas