Pitts, R. A., & Lei, D. (2007). Strategic management: Building and sustaining competitive advantage (4th ed.). Thomson/South-Western.
Chicago-viite (17. p.)Pitts, Robert A., ja David Lei. Strategic Management: Building and Sustaining Competitive Advantage. 4th ed. Australia: Thomson/South-Western, 2007.
MLA-viite (9. p.)Pitts, Robert A., ja David Lei. Strategic Management: Building and Sustaining Competitive Advantage. 4th ed. Thomson/South-Western, 2007.
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