Cita APA (7a ed.)

Harbury, C. (1982). Workbook in Introductory Economics (Third Edition). ELSEVIER.

Cita Chicago Style (17a ed.)

Harbury, Colin. Workbook in Introductory Economics (Third Edition). ELSEVIER, 1982.

Cita MLA (8a ed.)

Harbury, Colin. Workbook in Introductory Economics (Third Edition). ELSEVIER, 1982.

Precaución: Estas citas no son 100% exactas.