APA

Jones L. \., Jones L. I. b. E. \. \. A. R. \., .New international business English: communication skills in English for business purposes : student's book / Leo Jones, Richard Alexander \. Inglaterra : Cambridge : Cambridge University Press, 2003: .

Chicago

Jones Leo \, Jones Leo International business English \ \ Alexander Richard \, .New international business English: communication skills in English for business purposes : student's book / Leo Jones, Richard Alexander \. Inglaterra : Cambridge : Cambridge University Press, 2003: .

Harvard

Jones L. \., Jones L. I. b. E. \. \. A. R. \., .New international business English: communication skills in English for business purposes : student's book / Leo Jones, Richard Alexander \. Inglaterra : Cambridge : Cambridge University Press, 2003: .

MLA

Jones Leo \, Jones Leo International business English \ \ Alexander Richard \, .Inglaterra : Cambridge : Cambridge University Press, 2003: . .