By J.M. Parramon
By Tabacco Casa Editrice
By J Wedley
By R. Cavallo
By Nelissen, Nico, Van der Straaten, Jan, Klinkers, Leon
By SEDGWICK Michael
By World Health Organization(WHO)
By J. J. Guilbert
By Food and Agriculture Organization of the United Nations
By Organization for Economic Co-operation and Development
By United Nations Environment Programme
By European Foundation for the Improvement of Living & Working Conditions
By Council for International Organizations of Medical Sciences
By Carl Parsons
By B. M. Shepard
By Joe Campbell
By K. Moody
By K Ampong Nyarko