Companion encyclopedia of the history and philosophy of the mathematical sciences; Volume 1
edited by I. Grattan-Guinness
Routledge, 1994
 Buku Referensi
Companion encyclopedia of the history of medicine : volume 2
editor, W.F. Bynum, Roy Porter
Routledge, 1993
 Buku Referensi
Encyclopedia of earth sciences; Volume 2
E. Julius Dasch, editor in chief
MacMillan Reference USA, 1996
 Buku Referensi
Companion encyclopedia of the history of medicine : volume 1
edited by W.F. Bynum and Roy Porter
Routledge, 1993
 Buku Referensi
Companion encyclopedia of Asian philosophy
edited by Brian Carr, Indira Mahalingam
Routledge, 1997
 Buku Referensi