Messenger, S. (2020). Keeper of the Cities: Unlocked No. 8.5. Simon & Schuster UK Ltd.
Citazione stile Chigago Style (17a edizione)Messenger, Shannon. Keeper of the Cities: Unlocked No. 8.5. London: Simon & Schuster UK Ltd, 2020.
Citatione MLA (9a ed.)Messenger, Shannon. Keeper of the Cities: Unlocked No. 8.5. Simon & Schuster UK Ltd, 2020.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.