Robert A. Millikan Memorial Library. Institute Archives.
The Theodore von Kr̀mǹ Collection at the California Institute of Technology : guide to the original collection and a microfiche edition / editors, Judith R. Goodstein, Carolyn Kopp.
Von Kr̀mǹ, Theodore, 1881-1963 -- Archives.
Goodstein, Judith R.
Kopp, Carolyn.