By Rand McNally
By Books, Riddler
By McGraw Hill
By CGP Books, CGP Books
By Jill Davey, Jennifer Bigmore
By Martin Webber
By Davey, Patrick
By Doreen Challen
By Sharp, John, Byrne, Jenny
By Alan Stevens, Alan Stevens MBBS FRCPath, James S. Lowe BMedSci BMBS DM FRCPath
By Pears, Richard, Shields, Graham
By Wilde, Oscar
By Saramago, Jose
By Beverly L. Adams-Gordon
By Staneff, Tony
By Capelle, Guy, Gidon, Noelle
By Longman
By Council for International Organizations of Medical Sciences
By European Foundation for the Improvement of Living & Working Conditions
By United Nations Environment Programme
By Organization for Economic Co-operation and Development
By Food and Agriculture Organization of the United Nations
By J. J. Guilbert
By World Health Organization(WHO)
By J Wedley
By Bagaria