APA
McKean J., . (1999). Information masters : secrets of the customer race. England: John Wiley & Sons Ltd.
Chicago
McKean John, . 1999. Information masters : secrets of the customer race. England: John Wiley & Sons Ltd.
Harvard
McKean J., . (1999). Information masters : secrets of the customer race. England: John Wiley & Sons Ltd.
MLA
McKean John, . Information masters : secrets of the customer race. England: John Wiley & Sons Ltd. 1999.