Gaya APA

Pitts, R, A., Lei, D. (2000). Strategic Management; Building and Sustaining Competitive Advantage (2). Ohio: South-Western College Publishing (Thomson).

Gaya MLA

Pitts, Robert, A.., Lei, David. "Strategic Management; Building and Sustaining Competitive Advantage". 2 Ohio: South-Western College Publishing (Thomson), 2000. Text.