APA

Layard P. R. G., Walters A. A., .Microeconomic theory. New York: McGraw-Hill Book Company.

Chicago

Layard P Richard G, Walters A A, .Microeconomic theory. New York: McGraw-Hill Book Company.

Harvard

Layard P. R. G., Walters A. A., .Microeconomic theory. New York: McGraw-Hill Book Company.

MLA

Layard P Richard G, Walters A A, .New York: McGraw-Hill Book Company. .