APA-referens

Peterson, W. L. (1988). Principles of economics: Micro (6 edition.). Universal Book Stall.

Chicago-stil citat

Peterson, Willis L. Principles of Economics: Micro. 6 edition. New Delhi: Universal Book Stall, 1988.

MLA-referens

Peterson, Willis L. Principles of Economics: Micro. 6 edition. Universal Book Stall, 1988.