Books by Olaf Helmer-Hirschberg:
Books in the extended shelves:
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Helmer-Hirschberg, Olaf: Analytic geometry (Prentice-Hall, inc., 1947), also by David Solomon Nathan (page images at HathiTrust)- Helmer-Hirschberg, Olaf: An experimental application of the Delphi method to the use of experts (Rand Corp., 1962), also by Norman Crolee Dalkey (page images at HathiTrust)
- Helmer-Hirschberg, Olaf: On the epistemology of the inexact sciences (Rand Corp., 1960), also by Nicholas Rescher and Rand Corporation (page images at HathiTrust)
- Helmer-Hirschberg, Olaf: On the epistemology of the inexact sciences [by] Olaf Helmer [and] Nicholas Rescher ... (RAND Corporation, 1958), also by Nicholas Rescher (page images at HathiTrust)
- Helmer-Hirschberg, Olaf: Summary report : California futures study : analysis of impacts for transportation planning (State of California, Business and Transportation Agency, Dept. of Transportation, Division of Transportation Planning, 1974), also by Paul Gray and California. Division of Transportation Planning (page images at HathiTrust)
Find more by Olaf Helmer-Hirschberg at your library, or elsewhere.