Gaya APA

MANHEIM, J, B., Pich, R, C. (1981). Empirical Political Analysis : Research Methods in Political Science (Cet. 10). Englewood Cliffs: Prentice-Hall Inc..

Gaya MLA

MANHEIM, Jarol, B.., Pich, Richard, C.. "Empirical Political Analysis : Research Methods in Political Science". Cet. 10 Englewood Cliffs: Prentice-Hall Inc., 1981. Text.