P. E. Lydolph
发表
R. French,
P. E. Lydolph,
1990
.
P. E. Lydolph,
1957
.
Paul E. Lydolph,
P. E. Lydolph,
1977
.
P. E. Lydolph,
1964
.
P. E. Lydolph,
1986
.
Thomas B. Williams,
P. E. Lydolph,
1982
.
P. J. Grandstaff,
P. E. Lydolph,
1982
.
A. R. Bond,
P. E. Lydolph,
1979,
Soviet geography.
P. E. Lydolph,
R. Johnson,
J. Mintz,
1978,
Soviet geography.
P. E. Lydolph,
1977
.
Robert A. Lewis,
M. J. Sagers,
P. Micklin,
1987
.
P. E. Lydolph,
1957
.