Calvert, P. (1993). An introduction to comparative politics. Harvester Wheatsheaf, a division of Simon & Schuster International Group.
Chicago-viite (17. p.)Calvert, Peter. An Introduction to Comparative Politics. Hertfordshire, [England]: Harvester Wheatsheaf, a division of Simon & Schuster International Group, 1993.
MLA-viite (9. p.)Calvert, Peter. An Introduction to Comparative Politics. Harvester Wheatsheaf, a division of Simon & Schuster International Group, 1993.
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