| List I (Biographical Source) | List II (Publisher) | ||
| A | The International Who's Who | 1 | Routledge & CRC Press. |
| B | Current Biography | 2 | Marquis publications |
| C | Who's Who in America | 3 | H. W. Wilson |
| D | Who’s who? London | 4 | A & C Black |
1
A-3, B-1, C-2, D-4
2
A-1, B-3, C-2, D-4
3
A-1, B-3, C-4, D-2
4
A-1, B-2, C-3, D-4