APA (7th ed.) Citation

Langmuir, D. B., Stuhlinger, E., & Sellen, J. J. M. (1961). Electrostatic Propulsion. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/4.864797

Chicago Style (17th ed.) Citation

Langmuir, David B., Ernst Stuhlinger, and Jr. J. M. Sellen. Electrostatic Propulsion. New York: American Institute of Aeronautics and Astronautics, 1961. https://doi.org/10.2514/4.864797.

MLA (9th ed.) Citation

Langmuir, David B., et al. Electrostatic Propulsion. American Institute of Aeronautics and Astronautics, 1961. https://doi.org/10.2514/4.864797.