Cita APA (7a ed.)

Irving, R. E. M. (1979). The Christian Democratic parties of Western Europe. Royal Institute of International Affairs [etc.].

Cita Chicago Style (17a ed.)

Irving, Ronald Eckford Mill. The Christian Democratic Parties of Western Europe. London: Royal Institute of International Affairs [etc.], 1979.

Cita MLA (9a ed.)

Irving, Ronald Eckford Mill. The Christian Democratic Parties of Western Europe. Royal Institute of International Affairs [etc.], 1979.