APA引文

Sigma Insight Group. (2004). Corporate Strategy. Sigma Insight Group.

Chicago Style (17th ed.) Citation

Sigma Insight Group. Corporate Strategy. Seoul, korea: Sigma Insight Group, 2004.

MLA引文

Sigma Insight Group. Corporate Strategy. Sigma Insight Group, 2004.

警告：這些引文格式不一定是100％准確.