1
by Pitts
Published 1971
Wiley-Blackwell

2
by Pitts
Published 1969
Wiley-Blackwell

3
by Pitts
Published 1979
Wiley-Blackwell

4
by Pitts
Published 1980
Wiley-Blackwell

5
by Pitts
Published 1974
Wiley-Blackwell

6
by Pitts
Published 1977
Wiley-Blackwell