HARDY LEN. (1987). SUCCESSFUL BUSINESS STRATEGY HOW TO WIN IN THE MARKET PLACE. KOGAN PAGE.
Chicago-viite (17. p.)HARDY LEN. SUCCESSFUL BUSINESS STRATEGY HOW TO WIN IN THE MARKET PLACE. LONDON: KOGAN PAGE, 1987.
MLA-viite (9. p.)HARDY LEN. SUCCESSFUL BUSINESS STRATEGY HOW TO WIN IN THE MARKET PLACE. KOGAN PAGE, 1987.
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