Roeder, J. L. (1980). Energy for the future (2nd ed.). [Calhoun School Science Dept.].
Lua i Stíl Chicago (17ú heag.)Roeder, John L. Energy for the Future. 2nd ed. New York: [Calhoun School Science Dept.], 1980.
Lua MLA (9ú heag.)Roeder, John L. Energy for the Future. 2nd ed. [Calhoun School Science Dept.], 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.