Gaya APA
Johnson, Janet Buttolph. (1991).
Political Science: Research Methods (2nd.ed).
Washington:
CQ Press.
Gaya Chicago
Johnson, Janet Buttolph.
Political Science: Research Methods.
2nd.ed
Washington:
CQ Press,
1991.
Text.
Gaya MLA
Johnson, Janet Buttolph.
Political Science: Research Methods.
2nd.ed
Washington:
CQ Press,
1991.
Text.
Gaya Turabian
Johnson, Janet Buttolph.
Political Science: Research Methods.
2nd.ed
Washington:
CQ Press,
1991.
Print.