1
by Pettijohn, F. J., Potter, Paul Edwin, Siever, Raymond
Published 1987
Springer New York

2
by Pettijohn, F. J., Potter, Paul Edwin
Published 1964
Springer Berlin Heidelberg

3
by Potter, Paul Edwin, Pettijohn, F. J.
Published 1963
Springer Berlin Heidelberg

4
by Pettijohn, F. J., Potter, Paul Edwin, Siever, Raymond
Published 1972
Springer US