Cita APA (7th ed.)

Soars John & Soars Liz. (1998). New Headway English Course: Teacher's Book. Intermediate (4-th ed.). Oxford, Oxford University Press, 1998.

Cita Chicago (17th ed.)

Soars John i Soars Liz. New Headway English Course: Teacher's Book. Intermediate. 4-th ed. Oxford, Oxford University Press, 1998, 1998.

Cita MLA (9th ed.)

Soars John i Soars Liz. New Headway English Course: Teacher's Book. Intermediate. 4-th ed. Oxford, Oxford University Press, 1998, 1998.