Middleton, W. E. Knowles (William Edgar Knowles), 1902-1998.
Washington, D.C. : Smithsonian Institution Press, [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1969.
1969
Middleton, W. E. Knowles (William Edgar Knowles), 1902-1998.
Washington, D.C. : Smithsonian Institution Press, [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1969.
1969