photo editor, Peter Homan ; scientific editor, Reimar Schefold ; journalistic editor, Vincent Dekker ; overall final editing, Nico de JongeKegan Paul International1991
photo editor, Peter Homan ; scientific editor, Reimar Schefold ; journalistic editor, Vincent Dekker ; overall final editing, Nico de Jonge ; [translated from Dutch by Jeff van Exel and Tjitske WijngaardEdu' Actief Pub.c1990