Trappe, T., Tullis, G. Intelligent Business. Upper Intermediate. Harlow, England: PEARSON, 2006 176 p. 978-1-4082-5601-5.
Trappe, T., Tullis, G. Intelligent Business. Upper Intermediate. Harlow, England: PEARSON, 2006 176 p. 978-1-4082-5601-5.
Trappe, T., Tullis, G. (2006) Intelligent Business. Upper Intermediate, Harlow, England: PEARSON 176 p. 978-1-4082-5601-5.
Trappe, T., & Tullis, G. (2006). Intelligent Business. Upper Intermediate. Business English : Coursebook. Harlow, England: PEARSON, 176 p.
Trappe T, Tullis G. Intelligent Business. Upper Intermediate: Business English : Coursebook. Harlow, England: PEARSON; 2006. p. 176 p. ISBN: 978-1-4082-5601-5.