Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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