Gaya APA

Wick, C, W., Leon, L, S. (1993). The learning edge : how smart managers and smart companics stay ahfad . New York: McGraw-Hill.

Gaya MLA

Wick, Calhoun, W.., Leon, Lu, Stanton. "The learning edge : how smart managers and smart companics stay ahfad". New York: McGraw-Hill, 1993. Text.