APA

Case K. E., Fair R. C. & Oster S. E. (2017). Principles of economics. New Delhi: Pearson Education.

Chicago

Case Karl E, Fair Ray C and Oster Sharon E. 2017. Principles of economics. New Delhi: Pearson Education.

Harvard

Case K. E., Fair R. C. and Oster S. E. (2017). Principles of economics. New Delhi: Pearson Education.

MLA

Case Karl E, Fair Ray C and Oster Sharon E. Principles of economics. New Delhi: Pearson Education. 2017.