APA-viite

Kumar, P. A. (2007). Business challenges in the 21st century: Preparing for the future.

Chicago-tyylinen lähdeviittaus

Kumar, Prem; Arora. Business Challenges in the 21st Century: Preparing for the Future. Deep & Deep Publications, New Delhi, 2007.

MLA-viite

Kumar, Prem; Arora. Business Challenges in the 21st Century: Preparing for the Future. 2007.