By Langevin, Leo J..
Wellesley, Mass. QED Information Sciences 1990 .
xx, 425 p. , Includes index. 0894352997

By Ringer, Robert J..
[S.l.] | New York QED | Distributed by Harper & Row 1983 .
x, 261 p. , Includes index. 24 cm..
0910933006

By Ringer, Robert J..
[s.l.] | New York QED | distributed by Harper & Row 1979 .
xv, 320 p. , Includes index. 24 cm..
0068596022

By Stokes, Stewart L..
Wellesley, Mass. QED Information Sciences 1991 .
xiii, 189 p. 23 cm..
0894352938