※一部利用できない機能があります
- United States. National Bureau of Standards (12)
- Briggs, Lyman J. (Lyman James), 1874-1963 (2)
- Fuhr, J. R. (2)
- Lowan, Arnold N. (2)
- Martin, G. A. (2)
- United States. Work Projects Administration (2)
- Wiese, W. L. (2)
- Chase, M. W. (1)
- Kelly, Raymond L. (1)
- Moore, Charlotte Emma, 1898- (1)
- National Geographic Society (U.S.) (1)