By Cox, Brian, Forshaw, Jeff
By Frederick Gravetter (State University of New York, Brockport), Larry Wallnau (State University of New York
By Brysbaert, Marc
By Ramachandran, V. S.
By Rand R. Wilcox (University of Southern California, USA)
By John Beale
By Morton Hunt
By Alexander Hellemans, bryan bunch
By Athel Cornish-Bowden, Christopher W. Wharton
By Cotton, F. Albert, Wilkinson, Geoffrey, Gaus, Paul L.
By Brian Cox, Jeff Forshaw
By Marcia Bartusiak
By Sean Carroll (University of Chicago)
By Janna Levin
By Al-Khalili, Jim
By Peter Atkins (Professor of Chemistry, University of Oxford and fellow of Lincoln College)
By geigy
By David Berlinski
By Brian Clegg
By Gribbin, John
By Clegg, Brian
By Hodges, Andrew
By Professor Pedro G. Ferreira
By Nahin, Paul J.
By New Scientist
By John Gribbin
By Kaku, Michio, Kaku, M.
By David Rayner, Michael White
By The Mathematical Association
By Dorothy Warren, Nathan Goodman, Eliot Attridge