APA-viite (7. p.)

Sharp, L. (2021). the habit of excellence: Why british army leadership works. Penguin Business,.

Chicago-viite (17. p.)

Sharp, Langley. The Habit of Excellence: Why British Army Leadership Works. London: Penguin Business,, 2021.

MLA-viite (9. p.)

Sharp, Langley. The Habit of Excellence: Why British Army Leadership Works. Penguin Business,, 2021.