APA Edition Citation

Harbury, C. D. (1968). Workbook in introductory economics. Pergamon Press.

Chicago Edition Citation

Harbury, C. D. Workbook in Introductory Economics. Oxford: Pergamon Press, 1968.

MLA Edition Citation

Harbury, C. D. Workbook in Introductory Economics. Pergamon Press, 1968.

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