APA (7th ed.) Citation
Porter, M., & et al. (2014). Social Progress Index 2014. Social Progress Imperative.
Chicago Style (17th ed.) Citation
Porter, M., and et al. Social Progress Index 2014. Washington: Social Progress Imperative, 2014.
MLA (9th ed.) Citation
Porter, M., and et al. Social Progress Index 2014. Social Progress Imperative, 2014.
Warning: These citations may not always be 100% accurate.