APA (7th ed.) Zitazioa

Howard, R., & Robert Howard. (1980). Performance in a world of change: Perspective. U. Pr. of America.

Chicago Style (17th ed.) Zitazioa

Howard, Robert, eta Robert Howard. Performance in a World of Change: Perspective. Lanham: U. Pr. of America, 1980.

MLA (9th ed.) Zitazioa

Howard, Robert, eta Robert Howard. Performance in a World of Change: Perspective. U. Pr. of America, 1980.