F77_CLASS is a set of example programs which were used to illustrate some features of FORTRAN77 for a programming class.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
F77, FORTRAN77 programs which illustrate features of FORTRAN77;
F77_CALLS_C, FORTRAN77 programs which illustrates how a FORTRAN77 program can call a C function.
F77_CALLS_C++, FORTRAN77 programs which illustrates how a FORTRAN77 program can call a C++ function.
F77_CLEANUP, a FORTRAN90 program which makes a copy of a FORTRAN77 file in which some minor cleanups have been made.
F77_INTRINSICS, a FORTRAN77 program which illustrates the use of intrinsic functions supplied by the FORTRAN77 language.
F77_TO_F90, a FORTRAN90 program which converts a FORTRAN77 file to FORTRAN90 format, by Michael Metcalfe;
You can go up one level to the FORTRAN77 source codes.