Preston C. Hammer
发表
A. Stroud,
P. Hammer,
Preston C. Hammer,
1957
.
P. Hammer,
Preston C. Hammer,
1963
.
P. Hammer,
Preston C. Hammer,
1963
.
P. Hammer,
Preston C. Hammer,
1964
.
P. Hammer,
Preston C. Hammer,
1970,
SGCS.
P. Hammer,
Preston C. Hammer,
1955
.
P. Hammer,
Preston C. Hammer,
Jack W. Hollingsworth,
1955
.
Preston C. Hammer,
1958
.
P. Hammer,
Preston C. Hammer,
1955
.
Preston C. Hammer,
1965
.
A. Stroud,
P. Hammer,
Preston C. Hammer,
1956
.