APA-viite

Napoleoni, C., & Cigno, A. (1972). Economic Thought of the Twentieth Century. Vikas Publishing House Pvt. Ltd.

Chicago-tyylinen lähdeviittaus

Napoleoni, Claudio, ja Alessandro Cigno. Economic Thought of the Twentieth Century. Delhi: Vikas Publishing House Pvt. Ltd, 1972.

MLA-viite

Napoleoni, Claudio, ja Alessandro Cigno. Economic Thought of the Twentieth Century. Vikas Publishing House Pvt. Ltd, 1972.