Authors: Ro
- Mansfield, Robert E. 1866- 428 downloads
- Rosenbaum, Henry W. - 427 downloads
- Gordon, Robert, Sir - 426 downloads
- Nash, Rosalind Nightingale 1862-1952 426 downloads
- Palmer, Robert Stafford Arthur 1888-1916 425 downloads
- Mathot, Rodolphe Edgard 1866- 423 downloads
- Lubbers, Bob 1922-2017 421 downloads
- Traz, Robert de 1884-1951 421 downloads
- Benson, Roy 1917-1990 421 downloads
- Terwilliger, L. Roy - 420 downloads
- Tzara, Tristan 1896-1963 420 downloads
- Routledge, C. F. (Charles Francis) 1838- 420 downloads
- Röck, Karl - 419 downloads
- Rogers, Howard J. (Howard Jason) 1861-1927 419 downloads
- Garnier, Robert 1544-1590 419 downloads
- Rivenburg, Romeyn Henry - 418 downloads
- Robinson, Hugh 1882-1963 417 downloads
- Rowlands, Effie Adelaide 1866-1936 415 downloads
- Wilkins, Louisa Jebb - 415 downloads
- Rothamsted Experimental Station - 414 downloads
- Rotch, Abbott Lawrence 1861-1912 414 downloads
- Rothman, Milton A. 1919-2001 413 downloads
- Rosenberg, Isaac 1890-1918 412 downloads
- Royce, Ralph 1890-1965 411 downloads
- Mathews, R. H. (Robert Hamilton) 1841-1918 411 downloads
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