Gaya APA

Schaefer, D, B, D, D, M, S, &, S. (2013). Economics Of Strategy (6). Singapure: John Wiley & Sons, Inc.

Gaya MLA

Schaefer, David, Besanko,, David, Dranove,, Mark, Shanley,, &, Scott. "Economics Of Strategy". 6 Singapure: John Wiley & Sons, Inc, 2013. Text.