APA引文

(1992). An outline of America geography: Regional landscapes of the United States. New York, USA: United States Information Agency.

Trích dẫn kiểu Chicago

An Outline of America Geography: Regional Landscapes of the United States. New York, USA: United States Information Agency, 1992.

MLA引文

An Outline of America Geography: Regional Landscapes of the United States. New York, USA: United States Information Agency, 1992.

警告：這些引文格式不一定是100％准確.