Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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