Hollomon, J. H., & Grenon, M. (1975). Energy research and development. Ballinger Pub. Co.
Lua i Stíl Chicago (17ú heag.)Hollomon, J. Herbert, agus Michel Grenon. Energy Research and Development. Cambridge, Mass: Ballinger Pub. Co, 1975.
Lua MLA (9ú heag.)Hollomon, J. Herbert, agus Michel Grenon. Energy Research and Development. Ballinger Pub. Co, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.