By Engels, Friedrich, Kiernan, Victor
By Peak, Steve
By Lazear, Edward P.
By Goodhart, David
By Borjas
By Blyton, Paul, Turnbull, Peter
By Chandler, Peter
By Hobsbawm, Eric
By Kirpal, Simone R.
By Goller, Michael, Paloniemi, Susanna
By Kogan, Irena
By Baumann, Isabel
By Sandoz, Laure
By Matysiak, Anna
By Lieten, G.K.
By Pace, Roberta, Ham-Chande, Roberto
By Johnson, Benjamin, Kavanagh, Patrick, Mattson, Kevin
By Donald Schon, Schon, Donald
By Shershow, Scott Cutler
By Health and Safety Executive (HSE)
By Folbre, Nancy, etc., Bergmann, Barbara, Agarwal, Bina, Floro, Maria, Amartya Sen
By Trade, Dept.of
By McCarthy
By Great Britain: Health and Safety Commission
By Lieten, Georges Kristoffel
By Callow, Duncan
By Poole, Michael