Eckersley, C. (1963). Essential english for foreign students: Book four: teacher's book. Longman Group.
Citação norma ChicagoEckersley, C.E. Essential English for Foreign Students: Book Four: Teacher's Book. London: Longman Group, 1963.
Citação norma MLAEckersley, C.E. Essential English for Foreign Students: Book Four: Teacher's Book. Longman Group, 1963.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.