Annual report of the board of regents of the Smithsonian Institution :
Smithsonian Institution
Annual report of the board of regents of the Smithsonian Institution : Showing the Operations, Expenditures and Condition of the Institution for the Year ended June 30 1941 / Smithsonian Institution. - Washington, D.C. : Government Printing Office, 1942. - 596 p.
Smithsonian Institution--Annual report
Annual report of the board of regents of the Smithsonian Institution : Showing the Operations, Expenditures and Condition of the Institution for the Year ended June 30 1941 / Smithsonian Institution. - Washington, D.C. : Government Printing Office, 1942. - 596 p.
Smithsonian Institution--Annual report