Authors: Richard
- Taylor, Richard 1826-1879 573 downloads
- Gurdon, P. R. T. (Philip Richard Thornhagh) 1863-1942 568 downloads
- Evans, R. C. (Richard C.) 1861-1921 566 downloads
- Lykes, Richard Wayne - 563 downloads
- Garbe, Richard 1857-1927 562 downloads
- Whately, Richard 1787-1863 557 downloads
- Dedekind, Richard 1831-1916 556 downloads
- King-Hall, Stephen, Sir 1893-1966 554 downloads
- Hill, Richard 1795-1872 553 downloads
- Bitmead, Richard - 551 downloads
- Richards, Frederick B. - 544 downloads
- Kimball, Richard Bowland - 540 downloads
- Voss, Richard 1851-1918 539 downloads
- Richardson, Anna Steese 1865-1949 539 downloads
- Hawkins, Richard, Sir -1622 534 downloads
- Richards, Lela Horn 1870- 531 downloads
- Richardson, W. H. - 530 downloads
- Darwin, Bernard 1876-1961 529 downloads
- Lovelace, Richard 1618-1658 528 downloads
- Norton, Richard 1872-1918 525 downloads
- Maher, Richard Aumerle 1880-1959 519 downloads
- Neumann, Carl W. (Carl Wilhelm) 1871-1939 514 downloads
- Delbecq, Richard - 513 downloads
- Burne, C. R. N. (Charles Richard Newdigate) 1873-1940 512 downloads
- Richards, A. E. (Adolphus Edwards) 1844-1920 509 downloads
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