APA引文

Hartshorn, J. E. (1962). Oil Companies and Governments. London: Faber and Faber.

Trích dẫn kiểu Chicago

Hartshorn, J. E. Oil Companies and Governments. London: Faber and Faber, 1962.

MLA引文

Hartshorn, J. E. Oil Companies and Governments. London: Faber and Faber, 1962.

警告：這些引文格式不一定是100％准確.