Activacion analysis handbook

by Koch, Robert C.
Published 1960

1882-1982, homenaje al centenario del descubrimiento del bacilo de tuberculosis /

by Koch, Robert C. 1927-, Koch, Robert C. 1927-
Published 1975

Retention efficiencies of charcoal traps for fission gases : technical report /

by Koch, Robert C. 1927-, Koch, Robert C. 1927-, Grandy, G. L.
Published 1957