Hill, I. C., & Bowers, M. (1983). First Teeline workbook (rev. ed.). Heinemann Educational.
Cita Chicago (17th ed.)Hill, I. C., i Meriel Bowers. First Teeline Workbook. rev. ed. London: Heinemann Educational, 1983.
Cita MLA (8th ed.)Hill, I. C., i Meriel Bowers. First Teeline Workbook. rev. ed. Heinemann Educational, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.