APA (7th ed.) Zitazioa

LUMSDEN, K. (1966). Microeconomics; a programmed book.

Chicago Style (17th ed.) Zitazioa

LUMSDEN, Keith. Microeconomics; a Programmed Book. Englewood Cliffs, 1966.

MLA (9th ed.) Zitazioa

LUMSDEN, Keith. Microeconomics; a Programmed Book. 1966.