Ludwig, H. R. (1981). Understanding FORTRAN. Alfred Publishing.
芝加哥风格引文Ludwig, Herbert R. Understanding FORTRAN. Sherman Oaks: Alfred Publishing, 1981.
MLA引文Ludwig, Herbert R. Understanding FORTRAN. Alfred Publishing, 1981.
警告:这些引文格式不一定是100%准确.
Ludwig, H. R. (1981). Understanding FORTRAN. Alfred Publishing.
芝加哥风格引文Ludwig, Herbert R. Understanding FORTRAN. Sherman Oaks: Alfred Publishing, 1981.
MLA引文Ludwig, Herbert R. Understanding FORTRAN. Alfred Publishing, 1981.