请问谁有下面文献的英文版！毕业论文急用，谢谢~！

1、　Bain ,Joe S. (1951) “, Relation of Profit Rate to Industry Concentration:American Manufacturing 1936 - 1940 ,”Quarterly Journal of Economics.

2、Bain,J.,Industrial Organization,1959,ist;1968,2nd.John Wiley & Sons,Inc.

3、　Bradburd,Ralph M. ,and Mead A. Over ,Jr. (1982) “, Organizational Costs‘, Sticky Equilibria’,and Critical Levels of
Concentration.”Review of Economics and Statistics 64:50 - 58

4、White ,Lawrence(1976) “, Searchingfor the Critical Industrial Concentration Ratio.”in Stephen Goldfeld and Richard E.
Quandt eds1,Studies in Nonlinear Estimation.Cambridge ,Mass. :Ballinger ,61 - 75