Armour, R. (1962). It all started with Columbus. Cox & Wyman Ltd.
Citación estilo ChicagoArmour, Richard. It All Started with Columbus. London: Cox & Wyman Ltd, 1962.
Cita MLAArmour, Richard. It All Started with Columbus. Cox & Wyman Ltd, 1962.
Warning: These citations may not always be 100% accurate.