By Preston, Antony et al.
By J. E. Breakell, K. Foster, M. Siegwart
By David T Hughes
By Schwarzman, Gary, Paine, Chuck
By MacDougall, Philip
By Price, W.G.
By Watson, D.G.M.
By Newman, John Nicholas
By Iain Ballantyne
By Lambert, Professor Andrew D.
By Navy Dept.
By Slooff, J.W.
By Bitner-Gregersen, Elzbieta Maria, Eide, Lars Ingolf, Hørte, Torfinn, Skjong, Rolf, Svensen, Tor
By Edwards, Bernard
By Stephen Roskill
By Humble, Richard
By Chant, Chris
By N/A, Istituto geografico De Agostini
By Fabio Fossati
By Jolly, Rick
By Hamlin, Cyrus
By Norman Friedman, Allen Raven, A. D. Baker III
By Prezelin, Bernard, Baker III, A. D.
By Tarrant, V.E.
By Larsson, Lars, Eliasson, Rolf E.
By Kemp, John F., Young, Peter
By Bishop, Richard E. D., Price, W. G.
By Chapelle, Howard I