APA (7th ed.) Citation

Barry, N. P. (1981). An introduction to modern political theory. Macmillan.

Chicago Style (17th ed.) Citation

Barry, Norman P. An Introduction to Modern Political Theory. London: Macmillan, 1981.

MLA (9th ed.) Citation

Barry, Norman P. An Introduction to Modern Political Theory. Macmillan, 1981.

Warning: These citations may not always be 100% accurate.