Cita APA (7th ed.)
Penttinen, E. Joy and International Relations: A New Methodology. Routledge.
Cita Chicago (17th ed.)
Penttinen, Elina. Joy and International Relations: A New Methodology. Oxon, Inglaterra: Routledge.
Cita MLA (9th ed.)
Penttinen, Elina. Joy and International Relations: A New Methodology. Routledge.
Atenció: Aquestes cites poden no estar 100% correctes.