331.112
W723P
           Williams, Gertrude
               Price of social security problem of labour mobility \ Gertrude Williams - London : Kegan Paul, Trench, Trubner and Company, 1944.
               vii, 199p. - International library of society and social reconstruction/ed. by Karl Mannheim .
2432
                Subjects: Price discrimination; Restraint of trade; Social actions; Social policy.