CHOPRA M G. (1983). FORTRAN IV PROGRAMMING (3RD.). VIKAS PUBLISHING HOUSE PVT. LTD.
芝加哥风格引文CHOPRA M G. FORTRAN IV PROGRAMMING. 3RD. NEW DELHI: VIKAS PUBLISHING HOUSE PVT. LTD, 1983.
MLA引文CHOPRA M G. FORTRAN IV PROGRAMMING. 3RD. VIKAS PUBLISHING HOUSE PVT. LTD, 1983.
警告：这些引文格式不一定是100％准确.