Logarithms of hyperbolic functions to twelve significant figures

Chicago citation style
Pernot, Frederick Eugene, 1890-. Logarithms of hyperbolic functions to twelve significant figures. 1918. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001378642. (Accessed November 15, 2018.)
APA citation style
Pernot, Frederick Eugene, 1890-, (1918) Logarithms of hyperbolic functions to twelve significant figures. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/001378642
MLA citation style
Pernot, Frederick Eugene, 1890-. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/001378642>.
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