General Bibliography
- Hanani, Hannah - 1993
- Hardgrave, Roger - 1989
- Hargrave, Roger - 1985
- Hargrave, Roger - 1985 (II)
- Hargrave, Roger - 1987
- Hargrave, Roger - 1988
- Hargrave, Roger - 1989 (II)
- Hargrave, Roger - 1991
- Hargrave, Roger - 1992
- Hargrave, Roger - 1992 (II)
- Hargrave, Roger - 1998
- Hargrave, Roger - 2000
- Hargrave, Roger - 2000 (II)
- Hargrave, Roger - 2000 (III)
- Hargrave, Roger - 2001
- Hargrave, Roger Graham - Pollens, Stewart - Oliverira, Elmar - 1992
- Hart & Sons - 1893
- Hart & Sons - 1935
- Hart, George - 1875
- Hart, George - 1885