21
Published 1981
Springer New York

22
by Schulz-Schaeffer, Jurgen
Published 1980
Springer New York

23
by Baum, Siegmund J.
Published 1979
Springer New York

24
by Baum, Siegmund J.
Published 1978
Springer New York

25
Published 1977
Springer New York

26
by Baum, Siegmund J.
Published 1977
Springer New York

27
Published 1995
Springer US

28
by Beesley, Julian E.
Published 2001
Birkhäuser Boston

29
by Dooling, Robert J.
Published 2000
Springer New York

30
Published 1998
Humana Press

31
by Adolph, Kenneth W.
Published 1989
Springer New York

32
Published 1997
Humana Press

33
by Hawkins, Harold L.
Published 1996
Springer New York

34
by Herrmann, Bernd
Published 1994
Springer New York

35
by Ablashi, Dharam V.
Published 1989
Humana Press

36
by Sheffield, Joel B.
Published 1985
Springer New York

37
by Arnott, Struther
Published 1984
Humana Press

38
by Skehan, Philip
Published 1984
Humana Press

39
by Hardesty, Boyd
Published 1986
Springer New York

40
by Hess, Karl
Published 1996
Springer US