The Greening of Enterprise : Business Leaders speak out on Environmental Issues : papers presented at the Industry Forum on Environment ; a meeting for industry leaders in connection with the 1990 UN Conference Action for a Common Future, Bergen (Norway), 10 - 11 May 1990

From ideas to action : business and sustainable development ; the ICC report on the greening of enterprise 92

Willums, Jan-Olaf, (1992)

The greening of enterprise : business leaders speak out ; papers presented at the Industry Forum on Environment ; a meeting for industry leaders in connection with the 1990 UN Conference "Action for a Common Future" ; Bergen (Norway) 10 - 11 May 1990

Willums, Jan-Olaf, (1990)

Conference report and background papers / Second World Conference on Environmental Management : April 10 - 12, 1991, Rotterdam

Willums, Jan-Olaf, (1991)