ISAJET 7.37: A Monte Carlo Event Generator for $pp$, $\bar{p}p$, and $e^{+}{e}^{-}$ Interactions

ISAJET is a Monte Carlo event generator for $pp$, $\bar{p}p$, and $e^{+}{e}^{-}$ interactions at high energies. This document summarizes the physics underlying the program and describes how to use it.