K. Hagen
发表
J. Gorham,
K. Hagen,
1972,
Veterinary medicine, small animal clinician : VM, SAC.
K. Hagen,
1969
.
Pacific Northwest Cooperative Extension,
J. Gorham,
R. E. Flatt,
2008
.
K. Hagen,
1966
.
K. Hagen,
1974
.
K. Hagen,
1961,
Journal of the American Veterinary Medical Association.
K. Hagen,
1958,
American journal of veterinary research.
K. Hagen,
1966,
Laboratory animal care.
K. Sittmann,
R. B. Casady,
K. Hagen,
1964
.
K. Hagen,
1958,
Journal of the American Veterinary Medical Association.