APA

McKenzie R. B., Tullock G. & McGraw-Hill Book Company (1909-1917). (1978). Modern political economy. New York: McGraw-Hill Book Co.

Chicago

McKenzie Richard B, Tullock Gordon and McGraw-Hill Book Company (1909-1917). 1978. Modern political economy. New York: McGraw-Hill Book Co.

Harvard

McKenzie R. B., Tullock G. and McGraw-Hill Book Company (1909-1917). (1978). Modern political economy. New York: McGraw-Hill Book Co.

MLA

McKenzie Richard B, Tullock Gordon and McGraw-Hill Book Company (1909-1917). Modern political economy. New York: McGraw-Hill Book Co. 1978.