APA استشهاد

Napoleoni, C. (1972). Economic thought of the twentieth century. Vikas.

استشهاد بنمط شيكاغو

Napoleoni, Claudio. Economic Thought of the Twentieth Century. Delhi: Vikas, 1972.

MLA استشهاد

Napoleoni, Claudio. Economic Thought of the Twentieth Century. Vikas, 1972.