By Conn, P. Michael, Michael
By Gould, G. W.
By Gaither, C.C.
By John A. Burton, Burton, John A.
By R. Fitter, N. Arlott, A. Fitter, Norman Arlott, Richard Fitter, Alastair Fitter
By Clutton-Brock, Juliet, Young, Jerry, Shone, Karl
By Not credited, Photography By Dave King & Geoff Dann
By Colin Hynson, Hynson, Colin
By Agrios, George Nicholas
By Gosling, Peter J.
By Miotto, Enrico
By Reich, Hans J., Rigby, James H.
By Roush, William R., Pearson, Anthony J.
By Ph.D, Raye Lynne Dippel PH.D., Hutton, J. Thomas M.D.
By Baker, Lucy
By Strathern, Paul
By J. David Archibald
By Pinker, Steven
By Pievani, Telmo
By Petty, Will, Maizels, Jennie
By Lydiane Kyte, John Kleyn, John G. Kleyn
By Thompson, Edward V., Ceckler, William H.
By Matt Pagett
By No Author.
By DK
By Faust, Rudiger, Knaus, Gunter, Siemeling, Ulrich, Quadbeck–Seeger, Hans–Jürgen
By Clarke, J.C.
By Weiner, Howard L., Mayer, Lloyd F.
By Paul, William E., etc.