Chipperfield, R. O. (192). Ethel opens the door: An exploit of the Shadowers. Hurst and Blackett.
Citazione stile Chigago Style (17a edizione)Chipperfield, Robert Orr. Ethel Opens the Door: An Exploit of the Shadowers. London: Hurst and Blackett, 192.
Citatione MLA (9a ed.)Chipperfield, Robert Orr. Ethel Opens the Door: An Exploit of the Shadowers. Hurst and Blackett, 192.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.