APA (7th ed.) Citation

Numminen, S., & Lund, P. D. (2017, January). Frugal energy innovations for developing countries – a framework. Global Challenges.

Chicago Style (17th ed.) Citation

Numminen, Sini, and Peter D. Lund. "Frugal Energy Innovations for Developing Countries – a Framework." Global Challenges Jan. 2017.

MLA (9th ed.) Citation

Numminen, Sini, and Peter D. Lund. "Frugal Energy Innovations for Developing Countries – a Framework." Global Challenges, Jan. 2017.

Warning: These citations may not always be 100% accurate.