Cita APA (7th ed.)

Impey, G., & Underhill, N. (1994). The ELT manager's handbook: Practical advice on managing a successful language school. Heinemann English Language Teaching.

Cita Chicago (17th ed.)

Impey, Graham, i Nic Underhill. The ELT Manager's Handbook: Practical Advice on Managing a Successful Language School. Oxford: Heinemann English Language Teaching, 1994.

Cita MLA (8th ed.)

Impey, Graham, i Nic Underhill. The ELT Manager's Handbook: Practical Advice on Managing a Successful Language School. Heinemann English Language Teaching, 1994.