Citazione Stile APA (7a Edizione)

Lumsden, K. G. (1967). New developments in the teaching of economics. Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Lumsden, Keith G. New Developments in the Teaching of Economics. New Jersey: Prentice-Hall, 1967.

Citatione MLA (9a ed.)

Lumsden, Keith G. New Developments in the Teaching of Economics. Prentice-Hall, 1967.