O'Neill, R. (1994). Longman english works: Students' book. Longman.
Citación estilo ChicagoO'Neill, Robert. Longman English Works: Students' Book. Madrid: Longman, 1994.
Cita MLAO'Neill, Robert. Longman English Works: Students' Book. Longman, 1994.
Warning: These citations may not always be 100% accurate.