1
Published 1984
Humana

2
Published 1988
Humana

3
Published 1994
Humana

4
Published 1988
Humana

5
Published 1984
Humana

6
by Walker, John M., Gaastra, Wim
Published 1987
Springer US

7
Published 2002
Humana

8
Published 1996
Humana