Cita APA (7a ed.)
ebrary, Inc, Greenberg, J. S., & Hertzfeld, H. (1992). Space economics. American Institute of Aeronautics and Astronautics.
Cita Chicago Style (17a ed.)
ebrary, Inc, Joel S. Greenberg, y Henry Hertzfeld. Space Economics. Washington, D.C.: American Institute of Aeronautics and Astronautics, 1992.
Cita MLA (9a ed.)
ebrary, Inc, et al. Space Economics. American Institute of Aeronautics and Astronautics, 1992.
Precaución: Estas citas no son 100% exactas.