author = { Howatt, Anthony P. R. AND Webb, John AND Knight, Michael },

title = { A modern course in business English Book 3 Programmed units },

edition = { 1.publ., 6. impr. } ,

publisher = {Oxford Univ. Pr.},

isbn = {0194530027},

year = {1972},

address = { London },

url = { http://slubdd.de/katalog?TN_libero_mab2 }