Calorimetric evaluation of two cone-column solar-energy concentrators /
by Marvin D. Rhodes and Conrad M. Willis.

APA Citation

Rhodes, M. D., Willis, C. M., United States. National Aeronautics and Space Administration., Langley Research Center. (1969). Calorimetric evaluation of two cone-column solar-energy concentrators. Washington, D.C.: National Aeronautics and Space Administration .

MLA Citation

Rhodes, Marvin D, Conrad M Willis, United States. National Aeronautics and Space Administration, and Langley Research Center. Calorimetric Evaluation of Two Cone-column Solar-energy Concentrators. Washington, D.C.: National Aeronautics and Space Administration , 1969.