Bellows, R. M. (1962). Executive skills: Their dynamics and development. Prentice-Hall.
Citazione stile Chigago Style (17a edizione)Bellows, Roger Marion. Executive Skills: Their Dynamics and Development. Englewood Cliffs, N. J: Prentice-Hall, 1962.
Citatione MLA (9a ed.)Bellows, Roger Marion. Executive Skills: Their Dynamics and Development. Prentice-Hall, 1962.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.