Sewage-treatment works : administration and operation /

per Keefer, C. E.
Publicat 1940.

Benefits and problems with cloning animals.

per Smith, L C, Bordignon, V, Babkine, M, Fecteau, G, Keefer, C
Publicat 2000

C-C chemokines differentially alter interleukin-4 production from lymphocytes.

per Lukacs, N. W., Chensue, S. W., Karpus, W. J., Lincoln, P., Keefer, C., Strieter, R. M., Kunkel, S. L.
Publicat 1997