| Author | Titles | 1.
| Robertson, Frances, 1952- | 1 | 2.
| Robertson, George | 1 | 3.
| Robertson, Giles Henry | 2 | 4.
| Robertson, Gordon H. | 1 | 5.
| Robertson, Hickey | 1 | 6.
| Robertson, Ian | 10 | 7.
| Robertson, J. D. | 1 | 8.
| Robertson, Jack S. | 1 | 9.
| Robertson, Malcolm | 4 | 10.
| Robertson, Mariah | 1 |
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