Healy, MJR "Towards FORTRAN VI?" pp169-172
(1968)
Languages mentioned
Atlas Fortran V
{1967} Atlas scientific Fortran dialect
BTL Fortran
{1967} Bell labs Fortran IV
CDC Fortran
{1967} Advanced scientific Fortran by CDC
FORTRAN 66
{1966}
HARTRAN
{1961} Harwell FORTRAN
SDS Fortran
{1966}