(1996). American government: Principles and practices. USA: McGraw-Hill.
Trích dẫn kiểu ChicagoAmerican Government: Principles and Practices. USA: McGraw-Hill, 1996.
ציטוט MLAAmerican Government: Principles and Practices. USA: McGraw-Hill, 1996.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.