Naugle, John E.
Unmanned space flight / John E. Naugle. Coordinating editor: James V. Bernardo
Holt, Rinehart and Winston, 1965
 Buku Teks SO
Burrows, William E.
This new ocean : the story of the first space age / William E. Burrows
Random House, 1998
 Buku Teks SO
Williamson, Mark
Spacecraft technology: the early years
Institution of Engineering and Technology, 2008
 eBooks
Hubert, Lester F.
Weather satellites / Lester F. Hubert and Paul E. Lehr.
Blaisdell Pub. Co., 1967
 Buku Teks
Space and energy : proceedings of the XXVIth International Astronautical Congress, Lisbon, 21-27 September 1975
edited by L.G. Napolitano
Pergamon Press, 1977
 Buku Teks SO