Gaya APA

LOWI, T, J., GINSBERG, B. (2002). American Government: freedom and power (Ed 7). United States of America: W. W. Norton & Company.

Gaya MLA

LOWI, Theodore, J.., GINSBERG, Benjamin. "American Government: freedom and power". Ed 7 United States of America: W. W. Norton & Company, 2002. Text.