Harmon, D. E. (2018). The early days of space exploration. Britannica Educational Publishing in association with Rosen Educational Services.
Cita Chicago Style (17a ed.)Harmon, Daniel E. The Early Days of Space Exploration. New York, NY: Britannica Educational Publishing in association with Rosen Educational Services, 2018.
Cita MLA (8a ed.)Harmon, Daniel E. The Early Days of Space Exploration. Britannica Educational Publishing in association with Rosen Educational Services, 2018.
Precaución: Estas citas no son 100% exactas.