Gaya APA
Kollman, Ken. (2014).
The American Political System (1st.Ed.).
United State of America:
W.W. Norton & Company.
Gaya Chicago
Kollman, Ken.
The American Political System.
1st.Ed.
United State of America:
W.W. Norton & Company,
2014.
Text.
Gaya MLA
Kollman, Ken.
The American Political System.
1st.Ed.
United State of America:
W.W. Norton & Company,
2014.
Text.
Gaya Turabian
Kollman, Ken.
The American Political System.
1st.Ed.
United State of America:
W.W. Norton & Company,
2014.
Print.