APA (7th ed.) Citation

Englefield, D. J. T., & Drewry, G. (1984). Information sources in politics and political science: A survey worldwide. Butterworths.

Chicago Style (17th ed.) Citation

Englefield, Dermot J. T., and Gavin Drewry. Information Sources in Politics and Political Science: A Survey Worldwide. London ; Boston: Butterworths, 1984.

MLA (8th ed.) Citation

Englefield, Dermot J. T., and Gavin Drewry. Information Sources in Politics and Political Science: A Survey Worldwide. Butterworths, 1984.