Cita APA (7a ed.)
Hammond, A., Metz, W., & Maugh, T. (1973). Energy and the future. American Association for the Advancement of Science.
Cita Chicago Style (17a ed.)
Hammond, A.L, W.D Metz, y Th.H Maugh. Energy and the Future. Washigton: American Association for the Advancement of Science, 1973.
Cita MLA (9a ed.)
Hammond, A.L, et al. Energy and the Future. American Association for the Advancement of Science, 1973.
Precaución: Estas citas no son 100% exactas.