American Rocket Society Electrostatic Propulsion Conference Naval Postgraduate School, ebrary, Inc, Langmuir, D. B., Sellen, J. M., & Stuhlinger, E. (1961). Electrostatic propulsion: A selection of technical papers based mainly on a Symposium of the American Rocket Society held at U.S. Naval Postgraduate School, Monterey, California, November 3, 4, 1960. Academic Press.

American Rocket Society Electrostatic Propulsion Conference Naval Postgraduate School, Inc ebrary, David B. Langmuir, J. M. Sellen, và Ernst Stuhlinger. Electrostatic Propulsion: A Selection of Technical Papers Based Mainly on a Symposium of the American Rocket Society Held at U.S. Naval Postgraduate School, Monterey, California, November 3, 4, 1960. New York: Academic Press, 1961.

American Rocket Society Electrostatic Propulsion Conference Naval Postgraduate School, et al. Electrostatic Propulsion: A Selection of Technical Papers Based Mainly on a Symposium of the American Rocket Society Held at U.S. Naval Postgraduate School, Monterey, California, November 3, 4, 1960. Academic Press, 1961.