| Author | Popularity |
| Batstone, Roger, 1940- |
3 |
| R.W. Grimes |
3 |
| Roger Smith |
3 |
| Smith, James E., 1941- |
3 |
| United Nations. Environment Programme |
3 |
| Wilson, David, 1952- |
3 |
| World Bank |
3 |
| World Health Organization |
3 |
| Amy E. Latimer-Cheung |
2 |
| Andy Barrow |
2 |
| Audrey L. Hicks |
2 |
| B.P. Uberuaga |
2 |
| Brett M. Smith |
2 |
| Campbell, R. H. (Roy Hutcheson), 1927- |
2 |
| Chris Bourne |
2 |
| Christof Leicht |
2 |
| Christopher B. McBride |
2 |
| Christopher R. West |
2 |
| Dalton L. Wolfe |
2 |
| David S. Ditor |
2 |
| Dot Tussler |
2 |
| J.A. Ball |
2 |
| James H. Rimmer |
2 |
| Jan Lexell |
2 |
| John Steeves |
2 |
| K.E. Sickafus |
2 |
| Karen M. Smith |
2 |
| Kathleen A. Martin Ginis |
2 |
| Keith C. Hayes |
2 |
| Marco Bernardi |
2 |
| Patricia J. Manns |
2 |
| Peter Carruthers |
2 |
| Pierre Pomerleau |
2 |
| Robert B. Shaw |
2 |
| Skinner, Andrew S. (Andrew Stewart), 1935- |
2 |
| Smith, Adam, 1723-1790 |
2 |
| Smith, J. G. |
2 |
| Smith, P. W. G. |
2 |
| Smith, R. |
2 |
| Smith, Robert W. (Robert William), 1926- |
2 |
| Sonja Gaudet |
2 |
| Sonja de Groot |
2 |
| Steven Macaluso |
2 |
| Tatchell, A. R. |
2 |
| Todd, William B. (William Burton) |
2 |
| Vanessa K. Noonan |
2 |
| Vicky Goosey-Tolfrey |
2 |
| A Fukui |
1 |
| A John Blacker |
1 |
| A. Simon |
1 |