Cita APA (7a ed.)
Watkins, F. C., Dillingham, W. B., & Hiers, J. (1985). Practical English Workbook For Canadians. Nelson Canada.
Cita Chicago Style (17a ed.)
Watkins, Floyd C., William B. Dillingham, y JohnT Hiers. Practical English Workbook For Canadians. Ontario: Nelson Canada, 1985.
Cita MLA (9a ed.)
Watkins, Floyd C., et al. Practical English Workbook For Canadians. Nelson Canada, 1985.
Precaución: Estas citas no son 100% exactas.