Cita APA (7th ed.)

Jupp, T. C., Prowse, P., Garton-Sprenger, J., & Milne, J. (1979). Encounters: Students' book, part A, main course english (1a. ed.). Heinemann Educational Books.

Cita Chicago (17th ed.)

Jupp, T. C., Philip Prowse, Judy Garton-Sprenger, i John Milne. Encounters: Students' Book, Part A, Main Course English. 1a. ed. Londres: Heinemann Educational Books, 1979.

Cita MLA (9th ed.)

Jupp, T. C., et al. Encounters: Students' Book, Part A, Main Course English. 1a. ed. Heinemann Educational Books, 1979.