MUMPS Development Committee and Joseph T. O'Neill
MUMPS language standard
National Bureau of Standards
Supt. of Documents, U.S. Government Print Office (1976)
MUMPS Development Committee
American National Standard for information systems - Programming language MUMPS
American National Standards Institute, New York NY (1984)
MUMPS Development Committee
American National Standard for information systems - Programming language MUMPS
FIPS publication 125
National Bureau of Standards, Gaithersburg MD (1986)