APA

W.L.Hill C. H. G. M., .Global Business Today. New York: McGraw-Hill,2018: .

Chicago

W.L.Hill Charles Hult G.Tomas M, .Global Business Today. New York: McGraw-Hill,2018: .

Harvard

W.L.Hill C. H. G. M., .Global Business Today. New York: McGraw-Hill,2018: .

MLA

W.L.Hill Charles Hult G.Tomas M, .New York: McGraw-Hill,2018: . .