APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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