| Autor | Títulos | | 1.
| Hargittai, István | 1 | | 2.
| Hargittai, Magdolna | 1 | | 3.
| Hargraves, John | 1 | | 4.
| Hargraves, Matthew, 1978- | 1 | | 5.
| Hargreaves Associates | 1 | | 6.
| Hargreaves, David | 1 | | 7.
| hargreaves, Manuela | 1 | | 8.
| Hargreaves, Pamela | 3 | | 9.
| Hargreaves, Roger | 1 | | 10.
| Hargrove, Ethel Craven | 2 |
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