\geometry{letterpaper}		% ... or a4paper or a5paper or ... 

\textwidth=6.5in
\textheight=9.2in
\topmargin=-0.5in
\footskip=18pt
\oddsidemargin=0.0in
\evensidemargin=0.0in
\marginparsep=0.0in
\marginparwidth=0.0in
\headheight=12pt
\headsep=24pt

