Poulsom, N. W. (1968). The white ribbon: A medallic record of British polar expeditions. Seaby.
Citazione stile Chigago Style (17a edizione)Poulsom, Neville Wright. The White Ribbon: A Medallic Record of British Polar Expeditions. London: Seaby, 1968.
Citatione MLA (8a ed.)Poulsom, Neville Wright. The White Ribbon: A Medallic Record of British Polar Expeditions. Seaby, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.