\documentstyle[twocolumn]{article}
\pagestyle{empty}
\setlength{\textwidth}{6.9in}
\setlength{\textheight}{8.75in}
\setlength{\columnsep}{2.5pc}
\setlength{\topmargin}{-0.3in}
\setlength{\oddsidemargin}{-.3in}
\setlength{\parindent}{1pc}

\makeatletter
\def\@normalsize{\@setsize\normalsize{12pt}\xpt\@xpt
\abovedisplayskip 10pt plus2pt minus5pt\belowdisplayskip
 \abovedisplayskip \abovedisplayshortskip \z@
 plus3pt\belowdisplayshortskip 6pt plus3pt
 minus3pt\let\@listi\@listI}

\def\subsize{\@setsize\subsize{12pt}\xipt\xipt}

\def\section{\@startsection{section}{1}{\z@}{24pt plus 2 pt
 minus 2 pt} {12pt plus 2pt minus 2pt}{\large\bf}}

\def\subsection{\@startsection {subsection}{2}{\z@}{12pt
 plus 2pt minus 2pt}{12pt plus 2pt minus 2pt}{\subsize\bf}}
\makeatother

\begin{document}
\date{}

\title{\Large\bf Sample Article for ISCA Format}

%\author{I. M. Author \\
%My Department\\
%My Institute \\
%My City, ST, Zip}

%for two authors (type the following)
\author{\begin{tabular}[t]{c@{\extracolsep{8em}}c}
I. M. Author & U. R. Coauthor \\
My Department & Coauthor Department\\
My Institute & Coauthor Institute \\
City, St ~~Zip  & City, ST~~Zip
\end{tabular}}

\maketitle

\thispagestyle{empty}

\subsection*{\centering Abstract}
\vspace*{-3mm}

Please type your abstract here.  There are no specific size
limitations.  Please be brief yet concise.  It must fit
within the column boundaries specified with light blue
lines.


\section{Introduction}

Please type your introduction text here.  The heading text
 is 12 point bold font.

\subsection{Subsections}

There is 1 blank line before the section heading and one
afterwards.  Heading text is 11 point bold font.

You may cite references of the form \cite{key:foo} or
\cite{foo:bar}, andLaTex will keep track of numbering.  The
numbers are based on the order you place them in the
bibliography, not the order they appear in the text.  They
should be in alphabetical order.  LaTex will put square
brackets around the number in the text of your paper.  You
must run the latex process twice to allow the references to
format properly.  You will see a message about a missing
.aux file.  Simply latex it a second time and it will be
fine.

\section{Summary}

This guide will get you through a basic article with no
figures and no equations.  Refer to your Latex Manual if you
need to include these items.  

\subsection*{Acknowledgements}

This will show you how to do an unnumbered subsection.

\begin{thebibliography}{9}
\bibitem{key:foo}
I. M. Author, ``An Article I Wrote," {\em The Journal Name},
 Vol. 11, pp. 3-14, 1982.

\bibitem{foo:bar}
Next Author, {\em Title of Book}, the Publisher, 1982.

\end{thebibliography}

\end{document}