R. Hackman
发表
Eugene M. Shoemaker,
Robert J. Hackman,
E. Shoemaker,
1962
.
R. Hackman,
1962
.
R. Hackman,
1966
.
E. M. Shoemaker,
E. Shoemaker,
R. E. Eggleton,
1963
.
R. Hackman,
G. Holtzman,
P. E. Walter,
1992,
Military medicine.
R. Hackman,
1964
.
R. Hackman,
1966
.
Preliminary geologic map of the NW 1/4 Driggs 1 degree by two degrees Quadrangle, southeastern Idaho
R. Hackman,
H. Prostka,
1974
.
R. Hackman,
D. Wyant,
1973
.
R. Hackman,
A. B. Olson,
1977
.
R. Hackman,
P. L. Williams,
1983
.
R. Hackman,
P. Williams,
1971
.
R. Hackman,
1966
.