APA引文

Peter Bakurdjiev. (1974). Bulgaria: Questions and answers. New Jersey.

Trích dẫn kiểu Chicago

Peter Bakurdjiev. Bulgaria: Questions and Answers. New Jersey, 1974.

MLA引文

Peter Bakurdjiev. Bulgaria: Questions and Answers. New Jersey, 1974.

警告：這些引文格式不一定是100％准確.