Schroeder, R. C. (1999). An outline of American Government. USA: United states Information agency.
Trích dẫn kiểu ChicagoSchroeder, Richard C. An Outline of American Government. USA: United states Information agency, 1999.
ציטוט MLASchroeder, Richard C. An Outline of American Government. USA: United states Information agency, 1999.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.