Authors: Roberts (sorted by popularity)
- Tyas, Robert 1811-1879 87 downloads
- Engels, Robert 1866-1926 86 downloads
- Robertson, George Croom 1842-1892 86 downloads
- Wilson, Robert Pierpont - 85 downloads
- Richards, R. (Robert) 1884-1954 85 downloads
- Trevelyan, R. C. (Robert Calverley) 1872-1951 84 downloads
- Landells, Robert Thomas 1833-1877 84 downloads
- Lamennais, Félicité Robert de 1782-1854 84 downloads
- Maxwell, James Robert 1844- 84 downloads
- Roberts, Henri - 83 downloads
- Seton-Watson, R. W. (Robert William) 1879-1951 83 downloads
- Shufeldt, Robert W. (Robert Wilson) 1850-1934 83 downloads
- McCraig, Robert - 83 downloads
- Roberts, James 1881-1934 82 downloads
- Arnault, Robert - 82 downloads
- Vail, R. W. G. (Robert William Glenroie) 1890-1966 82 downloads
- Roberts, Kenneth Lewis 1885-1957 82 downloads
- Lubbers, Bob 1922-2017 82 downloads
- Munro, Robert 1835-1920 81 downloads
- Johnston, R. M. (Robert Matteson) 1867-1920 81 downloads
- Rogers, Robert Athlyi 1891-1931 81 downloads
- Brough, Robert B. (Robert Barnabas) 1828-1860 81 downloads
- Crawford, Robert 1831-1914 81 downloads
- Steuart, James, Sir 1712-1780 80 downloads
- Braidwood, Robert J. (Robert John) 1907-2003 80 downloads