Παραπομπή APA

Harman Chris. (2007). A people's history of the world. Orient Longman.

Παραπομπή Chicago Style

Harman Chris. A People's History of the World. New Delhi: Orient Longman, 2007.

Παραπομπή MLA

Harman Chris. A People's History of the World. Orient Longman, 2007.