| Author | Popularity |
| Adams, D. M. (David Michael), 1933- |
2 |
| Adams, Maurice Spencer Rowe |
2 |
| Adams, Robert M. (Robert Martin), 1915- |
2 |
| Adams, Thomas Francis Morton |
2 |
| Adams, W. Peter |
2 |
| Alan L. Hinderliter |
2 |
| Andrew Sherwood |
2 |
| Christopher M. O'Connor |
2 |
| Helleiner, Frederick M |
2 |
| International Geographical Congress Montreal |
2 |
| International Geographical Union |
2 |
| James A. Blumenthal |
2 |
| Kirkwood F. Adams |
2 |
| McAdams, A. K. |
2 |
| Nicola Paine |
2 |
| A Bergsten |
1 |
| A Cremaschi |
1 |
| A Golland |
1 |
| A Hodgson |
1 |
| A Kläy |
1 |
| A Linyard |
1 |
| A McCurdy |
1 |
| A de Vrieze |
1 |
| A. Adams |
1 |
| AI Horcea-Milcu |
1 |
| AY Abdurrahim |
1 |
| Abbas Dehghan |
1 |
| Abbas Rezaianzadeh |
1 |
| Abdonas Tamosiunas |
1 |
| Abdul Basit |
1 |
| Abdul Hamid Zargar |
1 |
| Abdullah Alkandari |
1 |
| Abdullatif Husseini |
1 |
| Abhijit Sen |
1 |
| Abla M Sibai |
1 |
| Abu AM Hanif |
1 |
| Adams, George Ernest |
1 |
| Adams, Marcus |
1 |
| Adams, Margaret |
1 |
| Adams, Michael, 1920- |
1 |
| Adams, Roy Melville |
1 |
| Adams, Sam, 1934- |
1 |
| Adams, W. Royce (Wilson Royce), 1930- |
1 |
| Adams, Walter, 1922- |
1 |
| Adela Chirita-Emandi |
1 |
| Adelheid Weber |
1 |
| Adolfo Rubinstein |
1 |
| Adrian Richter |
1 |
| Adroaldo Cesar Araujo Gaya |
1 |
| Afshin Ostovar |
1 |