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- United States52,491
- Geological Survey (U.S.)37,432
- United States. National Aeronautics and Space Administration25,127
- Yale University, degree granting institution19,856
- United States. Bureau of the Census15,199
- Shakespeare, William, 1564-161612,235
- United States. General Accounting Office12,129
- Walter L. Pforzheimer Intelligence Collection (Beinecke Rare Book and Manuscript Library)9,671
- Mozart, Wolfgang Amadeus, 1756-17918,964
- Bach, Johann Sebastian, 1685-17508,349
- Christie, Manson & Woods8,168
- Langley Research Center7,778
- United States. Department of State7,534
- Beethoven, Ludwig van, 1770-18277,258
- U.S. Atomic Energy Commission7,230
- United States. War Department6,844
- Goethe, Johann Wolfgang von, 1749-18326,520
- Riewert Tode Collection of German Student Movements and Counter-Culture6,493
- United States. Department of the Army6,180
- United States. Congress. House. Committee on Naval Affairs6,038