Macmillan dictionary of the history of science
edited by W.F. Bynum, E.J. Browne, Roy Porter
Macmillan Reference Books, 1989
 Buku Referensi
Adams, James Truslow
Dictionary of American history
1946
 Buku Referensi
Lincoln, Roger J.
The Cambridge illustrated dictionary of natural history
Cambridge University Press, 1990
 Buku Referensi
Biographical dictionary of the history of technology
edited by Lance Day and Ian McNeil
Roudledge, 1996
 Buku Referensi
Biographical dictionary of the history of technology
edited by Lance Day, Ian McNeil
Routledge, 1996
 Buku Referensi