71
Caldwell, III, Robert W
| Oxford University Press |
2020
72
Noval, Roberto J. De La
| Cambridge University Press |
2018
73
Walker, Robert T.
| Cambridge University Press |
2018
74
Roberts, Robert C.
| Cambridge University Press |
2017
75
Andrews, Robert M
| Oxford University Press |
2019
76
Fennell, Robert C
| Oxford University Press |
2018
77
Morgan, Robert
| Oxford University Press |
2018
78
Morgan, Robert
| Oxford University Press |
2017
79
Fennell, Robert C.
| Oxford University Press |
2017
80