Weinberg, I., Swartz, C. K., & Hart, R. E. (1989). Indium phosphide solar cell research in the United States: Comparison with nonphotovoltaic sources. National Aeronautics and Space Administration.
Chicago Style (17th ed.) CitationWeinberg, Irving, Clifford K. Swartz, and Russell E. Hart. Indium Phosphide Solar Cell Research in the United States: Comparison with Nonphotovoltaic Sources. [Washington, D.C.]: National Aeronautics and Space Administration, 1989.
MLA (9th ed.) CitationWeinberg, Irving, et al. Indium Phosphide Solar Cell Research in the United States: Comparison with Nonphotovoltaic Sources. National Aeronautics and Space Administration, 1989.
Warning: These citations may not always be 100% accurate.