Sharp, L. (2021). the habit of excellence: Why british army leadership works. Penguin Business,.
Citazione stile Chigago Style (17a edizione)Sharp, Langley. The Habit of Excellence: Why British Army Leadership Works. London: Penguin Business,, 2021.
Citatione MLA (9a ed.)Sharp, Langley. The Habit of Excellence: Why British Army Leadership Works. Penguin Business,, 2021.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.