APA (7th ed.) Citation

Ullal, H. S. (2008). Polycrystalline thin-film solar cell technologies: Preprint. National Renewable Energy Laboratory.

Chicago Style (17th ed.) Citation

Ullal, Harin S. Polycrystalline Thin-film Solar Cell Technologies: Preprint. Golden, Colo.: National Renewable Energy Laboratory, 2008.

MLA (9th ed.) Citation

Ullal, Harin S. Polycrystalline Thin-film Solar Cell Technologies: Preprint. National Renewable Energy Laboratory, 2008.