Chandler, Gerald D. "METAPI - a language for extensions"

[ISEL 1971] (1971) [ACM] SIGPLAN Notices 6(12) December 1971 Proceedings of the international symposium on Extensible languages Grenoble, France 1971  

Languages mentioned Circuit Compilation Language {1972} METAPI {1967} language for extensions PI {1968} Princeton Interactive compiler-compiler PIFOR {1966} VOCODER {1972} Voice synthesis language