Numerical integration of orbits in multirevolution steps

Chicago citation style
Velez, C. E. Numerical integration of orbits in multirevolution steps. [1970]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011444536. (Accessed November 18, 2018.)
APA citation style
Velez, C. E, ([1970]) Numerical integration of orbits in multirevolution steps. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011444536
MLA citation style
Velez, C. E. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/011444536>.
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