APA

Schroeder R. C., . (1989). An Outline of American Government. [Б. м.]: United States Information Agency.

Chicago

Schroeder R C, . 1989. An Outline of American Government. [Б. м.]: United States Information Agency.

Harvard

Schroeder R. C., . (1989). An Outline of American Government. [Б. м.]: United States Information Agency.

MLA

Schroeder R C, . An Outline of American Government. [Б. м.]: United States Information Agency. 1989.