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\begin{small}

% Note you must retain previous copyrights on modified documents as per
% the license.  Just add further \gfdlcopyright entries.  For instance
% uncomment the following for the 2nd edition.  Probably make only the
% current edition in bold.
%\textbf{2\textsuperscript{nd} Edition}
%\gfdlcopyright{2013}{Anne Author, Bob Writer, Cathy Novella}

% Petry note: Only the second edition was free of material from other texts.
\textbf{4\textsuperscript{th} Edition}
\gfdlcopyright{2018}{Robert G. Petry, Fotini Labropulu, Michael Thatcher}

3\textsuperscript{rd} Edition
\gfdlcopyright{2016}{Robert G. Petry, Fotini Labropulu}

2\textsuperscript{nd} Edition
\gfdlcopyright{2015}{Robert G. Petry, Fotini Labropulu}

1\textsuperscript{st} Edition
\gfdlcopyright{2014}{Robert G. Petry, Fotini Labropulu}

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\textbf{History}
\begin{itemize}
\item 1\textsuperscript{st} Edition produced in 2014 entitled ``Calculus I'' written by principal authors Robert G. Petry and Fotini Labropulu.  Published by Campion College and Luther College.  
\item 2\textsuperscript{nd} Edition produced in 2015 entitled ``Calculus I'' written by principal authors Robert G. Petry and Fotini Labropulu.  Published by Campion College and Luther College.  
\item 3\textsuperscript{rd} Edition produced in 2016 entitled ``Calculus I'' written by principal authors Robert G. Petry and Fotini Labropulu.  Published by Campion College and Luther College.  
\item 4\textsuperscript{th} Edition produced in 2018 entitled ``Calculus I'' written by principal authors Robert G. Petry and Fotini Labropulu.  Typeset in part by Michael Thatcher. Published by Campion College and Luther College.  
%\item 2\textsuperscript{nd} Edition produced in 2013 entitled ``Calculus I'' written by principal authors Anne Author and Bob Writer with contributions from Cathy Novella.  Published by ...
\end{itemize}

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%\textit{http://www.uregina.ca/science/mathstat/}
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\url{http://campioncollege.ca/contact-us/faculty-listing/dr-robert-petry}
%\url{http://www.uregina.ca/science/mathstat/}
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\textbf{About the cover:}
The cover line art drawing rolls several calculus concepts elegantly together including tangent lines, area under a curve, the Riemann sum, velocity, acceleration, and the integral symbol $\int$.  Also calculus is fun, just like roller coasters! The drawing is in the public domain and available from \url{http://openclipart.org}.

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